22947273 has 16 divisors (see below), whose sum is σ = 34138560. Its totient is φ = 15234048.

The previous prime is 22947241. The next prime is 22947311. The reversal of 22947273 is 37274922.

It is not a de Polignac number, because 22947273 - 2⁵ = 22947241 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22940273) 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 15 ways as a sum of consecutive naturals, for example, 5286 + ... + 8592.

It is an arithmetic number, because the mean of its divisors is an integer number (2133660).

Almost surely, 2^22947273 is an apocalyptic number.

It is an amenable number.

22947273 is a deficient number, since it is larger than the sum of its proper divisors (11191287).

22947273 is a wasteful number, since it uses less digits than its factorization.

22947273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573 (or 3567 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 22947273 is about 4790.3311994057. The cubic root of 22947273 is about 284.1692149344.

It can be divided in two parts, 22947 and 273, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 22947273 in words is "twenty-two million, nine hundred forty-seven thousand, two hundred seventy-three".