71359489 has 32 divisors (see below), whose sum is σ = 82722816. Its totient is φ = 61205760.

The previous prime is 71359487. The next prime is 71359511. The reversal of 71359489 is 98495317.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 71359489 - 2¹ = 71359487 is a prime.

It is a super-2 number, since 2×71359489² = 10184353340682242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71359487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1065034 + ... + 1065100.

It is an arithmetic number, because the mean of its divisors is an integer number (2585088).

Almost surely, 2^71359489 is an apocalyptic number.

It is an amenable number.

71359489 is a deficient number, since it is larger than the sum of its proper divisors (11363327).

71359489 is a wasteful number, since it uses less digits than its factorization.

71359489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205.

The product of its digits is 272160, while the sum is 46.

The square root of 71359489 is about 8447.4545870339. The cubic root of 71359489 is about 414.7794618620.

The spelling of 71359489 in words is "seventy-one million, three hundred fifty-nine thousand, four hundred eighty-nine".