84997256 has 8 divisors (see below), whose sum is σ = 159369870. Its totient is φ = 42498624.

The previous prime is 84997207. The next prime is 84997261. The reversal of 84997256 is 65279948.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 68724100 + 16273156 = 8290^2 + 4034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5312321 + ... + 5312336.

Almost surely, 2^84997256 is an apocalyptic number.

It is an amenable number.

84997256 is a deficient number, since it is larger than the sum of its proper divisors (74372614).

84997256 is a wasteful number, since it uses less digits than its factorization.

84997256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10624663 (or 10624659 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 50.

The square root of 84997256 is about 9219.3956417978. The cubic root of 84997256 is about 439.6782358313.

The spelling of 84997256 in words is "eighty-four million, nine hundred ninety-seven thousand, two hundred fifty-six".