16717992 has 32 divisors (see below), whose sum is σ = 41949600. Its totient is φ = 5552064.

The previous prime is 16717991. The next prime is 16717999. The reversal of 16717992 is 29971761.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16717991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6234 + ... + 8502.

It is an arithmetic number, because the mean of its divisors is an integer number (1310925).

Almost surely, 2^16717992 is an apocalyptic number.

16717992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16717992 is an abundant number, since it is smaller than the sum of its proper divisors (25231608).

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

16717992 is a wasteful number, since it uses less digits than its factorization.

16717992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585 (or 2581 counting only the distinct ones).

The product of its digits is 47628, while the sum is 42.

The square root of 16717992 is about 4088.7641164538. The cubic root of 16717992 is about 255.6984160136.

The spelling of 16717992 in words is "sixteen million, seven hundred seventeen thousand, nine hundred ninety-two".