707281 has 5 divisors (see below), whose sum is σ = 732541. Its totient is φ = 682892.

The previous prime is 707279. The next prime is 707293. The reversal of 707281 is 182707.

It is a happy number.

The square root of 707281 is 841.

It is a perfect power (a square, a biquadrate), and thus also a powerful number.

707281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1681 + 705600 = 41^2 + 840^2 .

It is not a de Polignac number, because 707281 - 2¹ = 707279 is a prime.

It is a super-2 number, since 2×707281² = 1000492825922, which contains 22 as substring.

It is a Duffinian number.

707281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (707261) by changing a digit.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 24375 + ... + 24403.

2⁷⁰⁷²⁸¹ is an apocalyptic number.

707281 is the 841-st square number.

707281 is the 421-st centered octagonal number.

It is an amenable number.

707281 is a deficient number, since it is larger than the sum of its proper divisors (25260).

707281 is an frugal number, since it uses more digits than its factorization.

707281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The cubic root of 707281 is about 89.0971879449.

Multiplying 707281 by its sum of digits (25), we get a square (17682025 = 4205²).

Multiplying 707281 by its product of nonzero digits (784), we get a square (554508304 = 23548²).

Adding to 707281 its reverse (182707), we get a palindrome (889988).

The spelling of 707281 in words is "seven hundred seven thousand, two hundred eighty-one".