22972786 has 8 divisors (see below), whose sum is σ = 36272880. Its totient is φ = 10881828.

The previous prime is 22972777. The next prime is 22972841. The reversal of 22972786 is 68727922.

It is a happy number.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 302236 + ... + 302311.

It is an arithmetic number, because the mean of its divisors is an integer number (4534110).

Almost surely, 2^22972786 is an apocalyptic number.

22972786 is a deficient number, since it is larger than the sum of its proper divisors (13300094).

22972786 is a wasteful number, since it uses less digits than its factorization.

22972786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604568.

The product of its digits is 169344, while the sum is 43.

The square root of 22972786 is about 4792.9934279112. The cubic root of 22972786 is about 284.2744899557.

The spelling of 22972786 in words is "twenty-two million, nine hundred seventy-two thousand, seven hundred eighty-six".