16672972 has 12 divisors (see below), whose sum is σ = 29206296. Its totient is φ = 8328320.

The previous prime is 16672969. The next prime is 16672973. The reversal of 16672972 is 27927661.

It is not an unprimeable number, because it can be changed into a prime (16672973) 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, 6972 + ... + 9052.

It is an arithmetic number, because the mean of its divisors is an integer number (2433858).

Almost surely, 2^16672972 is an apocalyptic number.

It is an amenable number.

16672972 is a deficient number, since it is larger than the sum of its proper divisors (12533324).

16672972 is a wasteful number, since it uses less digits than its factorization.

16672972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088 (or 4086 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 16672972 is about 4083.2550740800. The cubic root of 16672972 is about 255.4686856459.

The spelling of 16672972 in words is "sixteen million, six hundred seventy-two thousand, nine hundred seventy-two".