22994887 has 2 divisors, whose sum is σ = 22994888. Its totient is φ = 22994886.

The previous prime is 22994857. The next prime is 22994893. The reversal of 22994887 is 78849922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22994887 - 2⁷ = 22994759 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22994887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22994827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11497443 + 11497444.

It is an arithmetic number, because the mean of its divisors is an integer number (11497444).

Almost surely, 2^22994887 is an apocalyptic number.

22994887 is a deficient number, since it is larger than the sum of its proper divisors (1).

22994887 is an equidigital number, since it uses as much as digits as its factorization.

22994887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 49.

The square root of 22994887 is about 4795.2984265841. The cubic root of 22994887 is about 284.3656229569.

The spelling of 22994887 in words is "twenty-two million, nine hundred ninety-four thousand, eight hundred eighty-seven".