16913772 has 36 divisors (see below), whose sum is σ = 44340296. Its totient is φ = 5637600.

The previous prime is 16913761. The next prime is 16913777. The reversal of 16913772 is 27731961.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16913777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7729 + ... + 9672.

Almost surely, 2^16913772 is an apocalyptic number.

16913772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16913772 is an abundant number, since it is smaller than the sum of its proper divisors (27426524).

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

16913772 is a wasteful number, since it uses less digits than its factorization.

16913772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17420 (or 17406 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 16913772 is about 4112.6356512582. The cubic root of 16913772 is about 256.6926837816.

The spelling of 16913772 in words is "sixteen million, nine hundred thirteen thousand, seven hundred seventy-two".