7989256 has 16 divisors (see below), whose sum is σ = 16341840. Its totient is φ = 3631440.

The previous prime is 7989251. The next prime is 7989323. The reversal of 7989256 is 6529897.

It is a super-2 number, since 2×7989256² = 127656422867072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7989251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45306 + ... + 45481.

It is an arithmetic number, because the mean of its divisors is an integer number (1021365).

Almost surely, 2^7989256 is an apocalyptic number.

It is an amenable number.

7989256 is an abundant number, since it is smaller than the sum of its proper divisors (8352584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7989256 is a wasteful number, since it uses less digits than its factorization.

7989256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90804 (or 90800 counting only the distinct ones).

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

The square root of 7989256 is about 2826.5271978171. The cubic root of 7989256 is about 199.9104265556.

The spelling of 7989256 in words is "seven million, nine hundred eighty-nine thousand, two hundred fifty-six".