7081489 has 6 divisors (see below), whose sum is σ = 7220486. Its totient is φ = 6945120.

The previous prime is 7081457. The next prime is 7081499. The reversal of 7081489 is 9841807.

It can be written as a sum of positive squares in 3 ways, for example, as 409600 + 6671889 = 640^2 + 2583^2 .

It is not a de Polignac number, because 7081489 - 2⁵ = 7081457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7081439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1549 + ... + 4069.

Almost surely, 2^7081489 is an apocalyptic number.

It is an amenable number.

7081489 is a deficient number, since it is larger than the sum of its proper divisors (138997).

7081489 is an equidigital number, since it uses as much as digits as its factorization.

7081489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627 (or 2574 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 7081489 is about 2661.1067246542. The cubic root of 7081489 is about 192.0325556051.

It can be divided in two parts, 708 and 1489, that added together give a cube (2197 = 13³).

The spelling of 7081489 in words is "seven million, eighty-one thousand, four hundred eighty-nine".