7885489 has 8 divisors (see below), whose sum is σ = 8172360. Its totient is φ = 7603200.

The previous prime is 7885483. The next prime is 7885511. The reversal of 7885489 is 9845887.

It can be written as a sum of positive squares in 4 ways, for example, as 625 + 7884864 = 25^2 + 2808^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7885489 - 2⁵ = 7885457 is a prime.

It is a Duffinian number.

7885489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7885483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2569 + ... + 4729.

It is an arithmetic number, because the mean of its divisors is an integer number (1021545).

Almost surely, 2^7885489 is an apocalyptic number.

It is an amenable number.

7885489 is a deficient number, since it is larger than the sum of its proper divisors (286871).

7885489 is a wasteful number, since it uses less digits than its factorization.

7885489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291.

The product of its digits is 645120, while the sum is 49.

The square root of 7885489 is about 2808.1112869685. Note that the first 3 decimals coincide. The cubic root of 7885489 is about 199.0411520662.

The spelling of 7885489 in words is "seven million, eight hundred eighty-five thousand, four hundred eighty-nine".