22642877 has 2 divisors, whose sum is σ = 22642878. Its totient is φ = 22642876.

The previous prime is 22642871. The next prime is 22642883. The reversal of 22642877 is 77824622.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (22642871) and next prime (22642883).

It can be written as a sum of positive squares in only one way, i.e., 12313081 + 10329796 = 3509^2 + 3214^2 .

It is a cyclic number.

It is not a de Polignac number, because 22642877 - 2¹⁸ = 22380733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22642877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22642871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11321438 + 11321439.

It is an arithmetic number, because the mean of its divisors is an integer number (11321439).

Almost surely, 2^22642877 is an apocalyptic number.

It is an amenable number.

22642877 is a deficient number, since it is larger than the sum of its proper divisors (1).

22642877 is an equidigital number, since it uses as much as digits as its factorization.

22642877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 38.

The square root of 22642877 is about 4758.4532150689. The cubic root of 22642877 is about 282.9071144846.

The spelling of 22642877 in words is "twenty-two million, six hundred forty-two thousand, eight hundred seventy-seven".