16856264 has 8 divisors (see below), whose sum is σ = 31605510. Its totient is φ = 8428128.

The previous prime is 16856261. The next prime is 16856269. The reversal of 16856264 is 46265861.

It can be written as a sum of positive squares in only one way, i.e., 16728100 + 128164 = 4090^2 + 358^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16856261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053509 + ... + 1053524.

Almost surely, 2^16856264 is an apocalyptic number.

It is an amenable number.

16856264 is a deficient number, since it is larger than the sum of its proper divisors (14749246).

16856264 is a wasteful number, since it uses less digits than its factorization.

16856264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107039 (or 2107035 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 16856264 is about 4105.6380746481. The cubic root of 16856264 is about 256.4014291163.

The spelling of 16856264 in words is "sixteen million, eight hundred fifty-six thousand, two hundred sixty-four".