16919964 has 36 divisors (see below), whose sum is σ = 45287424. Its totient is φ = 5308032.

The previous prime is 16919957. The next prime is 16919971. The reversal of 16919964 is 46991961.

It is an interprime number because it is at equal distance from previous prime (16919957) and next prime (16919971).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×16919964² = 572570363522592, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13212 + ... + 14435.

It is an arithmetic number, because the mean of its divisors is an integer number (1257984).

Almost surely, 2^16919964 is an apocalyptic number.

It is an amenable number.

16919964 is an abundant number, since it is smaller than the sum of its proper divisors (28367460).

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

16919964 is a wasteful number, since it uses less digits than its factorization.

16919964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27674 (or 27669 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 16919964 is about 4113.3883842886. The cubic root of 16919964 is about 256.7240043563.

The spelling of 16919964 in words is "sixteen million, nine hundred nineteen thousand, nine hundred sixty-four".