22947473 has 4 divisors (see below), whose sum is σ = 23170368. Its totient is φ = 22724580.

The previous prime is 22947469. The next prime is 22947479. The reversal of 22947473 is 37474922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22947473 - 2² = 22947469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22947479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111293 + ... + 111498.

It is an arithmetic number, because the mean of its divisors is an integer number (5792592).

Almost surely, 2^22947473 is an apocalyptic number.

It is an amenable number.

22947473 is a deficient number, since it is larger than the sum of its proper divisors (222895).

22947473 is a wasteful number, since it uses less digits than its factorization.

22947473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222894.

The product of its digits is 84672, while the sum is 38.

The square root of 22947473 is about 4790.3520747436. The cubic root of 22947473 is about 284.1700405035.

The spelling of 22947473 in words is "twenty-two million, nine hundred forty-seven thousand, four hundred seventy-three".