16997628 has 24 divisors (see below), whose sum is σ = 41749120. Its totient is φ = 5367600.

The previous prime is 16997627. The next prime is 16997633. The reversal of 16997628 is 82679961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16997623) 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, 37048 + ... + 37503.

Almost surely, 2^16997628 is an apocalyptic number.

It is an amenable number.

16997628 is an abundant number, since it is smaller than the sum of its proper divisors (24751492).

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

16997628 is a wasteful number, since it uses less digits than its factorization.

16997628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74577 (or 74575 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 16997628 is about 4122.8179683319. The cubic root of 16997628 is about 257.1161995293.

The spelling of 16997628 in words is "sixteen million, nine hundred ninety-seven thousand, six hundred twenty-eight".