16918964 has 6 divisors (see below), whose sum is σ = 29608194. Its totient is φ = 8459480.

The previous prime is 16918933. The next prime is 16918981. The reversal of 16918964 is 46981961.

It can be written as a sum of positive squares in only one way, i.e., 9672100 + 7246864 = 3110^2 + 2692^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2114867 + ... + 2114874.

It is an arithmetic number, because the mean of its divisors is an integer number (4934699).

Almost surely, 2^16918964 is an apocalyptic number.

It is an amenable number.

16918964 is a deficient number, since it is larger than the sum of its proper divisors (12689230).

16918964 is a wasteful number, since it uses less digits than its factorization.

16918964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229745 (or 4229743 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 16918964 is about 4113.2668282036. The cubic root of 16918964 is about 256.7189466414.

The spelling of 16918964 in words is "sixteen million, nine hundred eighteen thousand, nine hundred sixty-four".