22922947 has 2 divisors, whose sum is σ = 22922948. Its totient is φ = 22922946.

The previous prime is 22922923. The next prime is 22922957. The reversal of 22922947 is 74922922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22922947 - 2¹⁹ = 22398659 is a prime.

It is a super-2 number, since 2×22922947² = 1050922998329618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22922957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11461473 + 11461474.

It is an arithmetic number, because the mean of its divisors is an integer number (11461474).

Almost surely, 2^22922947 is an apocalyptic number.

22922947 is a deficient number, since it is larger than the sum of its proper divisors (1).

22922947 is an equidigital number, since it uses as much as digits as its factorization.

22922947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 22922947 is about 4787.7914532695. The cubic root of 22922947 is about 284.0687651709.

The spelling of 22922947 in words is "twenty-two million, nine hundred twenty-two thousand, nine hundred forty-seven".