16973091 has 32 divisors (see below), whose sum is σ = 26568000. Its totient is φ = 10692864.

The previous prime is 16973087. The next prime is 16973107. The reversal of 16973091 is 19037961.

It is not a de Polignac number, because 16973091 - 2² = 16973087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16973041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41295 + ... + 41703.

It is an arithmetic number, because the mean of its divisors is an integer number (830250).

Almost surely, 2^16973091 is an apocalyptic number.

16973091 is a deficient number, since it is larger than the sum of its proper divisors (9594909).

16973091 is a wasteful number, since it uses less digits than its factorization.

16973091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 16973091 is about 4119.8411377139. The cubic root of 16973091 is about 256.9924195456.

The spelling of 16973091 in words is "sixteen million, nine hundred seventy-three thousand, ninety-one".