16947916 has 12 divisors (see below), whose sum is σ = 30218832. Its totient is φ = 8313968.

The previous prime is 16947911. The next prime is 16947923. The reversal of 16947916 is 61974961.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16947911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39760 + ... + 40183.

It is an arithmetic number, because the mean of its divisors is an integer number (2518236).

Almost surely, 2^16947916 is an apocalyptic number.

It is an amenable number.

16947916 is a deficient number, since it is larger than the sum of its proper divisors (13270916).

16947916 is a wasteful number, since it uses less digits than its factorization.

16947916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80000 (or 79998 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 16947916 is about 4116.7846676745. The cubic root of 16947916 is about 256.8652970408.

The spelling of 16947916 in words is "sixteen million, nine hundred forty-seven thousand, nine hundred sixteen".