868828256 has 24 divisors (see below), whose sum is σ = 1711614240. Its totient is φ = 434132608.

The previous prime is 868828241. The next prime is 868828271. The reversal of 868828256 is 652828868.

It is an interprime number because it is at equal distance from previous prime (868828241) and next prime (868828271).

It is a junction number, because it is equal to n+sod(n) for n = 868828198 and 868828207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46745 + ... + 62631.

It is an arithmetic number, because the mean of its divisors is an integer number (71317260).

Almost surely, 2^868828256 is an apocalyptic number.

It is an amenable number.

868828256 is a deficient number, since it is larger than the sum of its proper divisors (842785984).

868828256 is a wasteful number, since it uses less digits than its factorization.

868828256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17606 (or 17598 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 53.

The square root of 868828256 is about 29475.8927939426. The cubic root of 868828256 is about 954.2114983031.

The spelling of 868828256 in words is "eight hundred sixty-eight million, eight hundred twenty-eight thousand, two hundred fifty-six".