16947772 has 24 divisors (see below), whose sum is σ = 31424400. Its totient is φ = 7975296.

The previous prime is 16947767. The next prime is 16947773. The reversal of 16947772 is 27774961.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16947773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12504 + ... + 13792.

It is an arithmetic number, because the mean of its divisors is an integer number (1309350).

Almost surely, 2^16947772 is an apocalyptic number.

It is an amenable number.

16947772 is a deficient number, since it is larger than the sum of its proper divisors (14476628).

16947772 is a wasteful number, since it uses less digits than its factorization.

16947772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485 (or 1483 counting only the distinct ones).

The product of its digits is 148176, while the sum is 43.

The square root of 16947772 is about 4116.7671782601. The cubic root of 16947772 is about 256.8645695431.

The spelling of 16947772 in words is "sixteen million, nine hundred forty-seven thousand, seven hundred seventy-two".