16972563 has 8 divisors (see below), whose sum is σ = 22730688. Its totient is φ = 11264744.

The previous prime is 16972559. The next prime is 16972577. The reversal of 16972563 is 36527961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16972563 - 2² = 16972559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16972363) 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, 11781 + ... + 13142.

It is an arithmetic number, because the mean of its divisors is an integer number (2841336).

Almost surely, 2^16972563 is an apocalyptic number.

16972563 is a deficient number, since it is larger than the sum of its proper divisors (5758125).

16972563 is a wasteful number, since it uses less digits than its factorization.

16972563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25153.

The product of its digits is 68040, while the sum is 39.

The square root of 16972563 is about 4119.7770570748. Note that the first 3 decimals coincide. The cubic root of 16972563 is about 256.9897546724.

The spelling of 16972563 in words is "sixteen million, nine hundred seventy-two thousand, five hundred sixty-three".