16997992 has 32 divisors (see below), whose sum is σ = 34927200. Its totient is φ = 7691200.

The previous prime is 16997963. The next prime is 16997993. The reversal of 16997992 is 29979961.

It is not an unprimeable number, because it can be changed into a prime (16997993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36642 + ... + 37102.

It is an arithmetic number, because the mean of its divisors is an integer number (1091475).

Almost surely, 2^16997992 is an apocalyptic number.

It is an amenable number.

16997992 is an abundant number, since it is smaller than the sum of its proper divisors (17929208).

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

16997992 is a wasteful number, since it uses less digits than its factorization.

16997992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897 (or 893 counting only the distinct ones).

The product of its digits is 551124, while the sum is 52.

The square root of 16997992 is about 4122.8621126591. The cubic root of 16997992 is about 257.1180348762.

It can be divided in two parts, 169979 and 92, that added together give a palindrome (170071).

The spelling of 16997992 in words is "sixteen million, nine hundred ninety-seven thousand, nine hundred ninety-two".