22412947 has 2 divisors, whose sum is σ = 22412948. Its totient is φ = 22412946.

The previous prime is 22412927. The next prime is 22412977. The reversal of 22412947 is 74921422.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22412947 is a prime.

It is not a weakly prime, because it can be changed into another prime (22412927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11206473 + 11206474.

It is an arithmetic number, because the mean of its divisors is an integer number (11206474).

Almost surely, 2^22412947 is an apocalyptic number.

22412947 is a deficient number, since it is larger than the sum of its proper divisors (1).

22412947 is an equidigital number, since it uses as much as digits as its factorization.

22412947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 22412947 is about 4734.2314054131. The cubic root of 22412947 is about 281.9462491656.

The spelling of 22412947 in words is "twenty-two million, four hundred twelve thousand, nine hundred forty-seven".