22869639 has 24 divisors (see below), whose sum is σ = 36188880. Its totient is φ = 13830912.

The previous prime is 22869629. The next prime is 22869643. The reversal of 22869639 is 93696822.

22869639 is a `hidden beast` number, since 2 + 2 + 8 + 6 + 9 + 639 = 666.

It is not a de Polignac number, because 22869639 - 2¹⁷ = 22738567 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22869594 and 22869603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22869619) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5247 + ... + 8559.

It is an arithmetic number, because the mean of its divisors is an integer number (1507870).

Almost surely, 2^22869639 is an apocalyptic number.

22869639 is a deficient number, since it is larger than the sum of its proper divisors (13319241).

22869639 is a wasteful number, since it uses less digits than its factorization.

22869639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391 (or 3388 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 22869639 is about 4782.2211366686. The cubic root of 22869639 is about 283.8483907788.

The spelling of 22869639 in words is "twenty-two million, eight hundred sixty-nine thousand, six hundred thirty-nine".