16319864 has 32 divisors (see below), whose sum is σ = 35348400. Its totient is φ = 6981120.

The previous prime is 16319843. The next prime is 16319867. The reversal of 16319864 is 46891361.

16319864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16319867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3959 + ... + 6950.

Almost surely, 2^16319864 is an apocalyptic number.

It is an amenable number.

16319864 is an abundant number, since it is smaller than the sum of its proper divisors (19028536).

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

16319864 is a wasteful number, since it uses less digits than its factorization.

16319864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10943 (or 10939 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 16319864 is about 4039.7851428015. The cubic root of 16319864 is about 253.6523236217.

The spelling of 16319864 in words is "sixteen million, three hundred nineteen thousand, eight hundred sixty-four".