22953639 has 8 divisors (see below), whose sum is σ = 30627072. Its totient is φ = 15291320.

The previous prime is 22953607. The next prime is 22953643. The reversal of 22953639 is 93635922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22953639 - 2⁵ = 22953607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22953597 and 22953606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22953439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6082 + ... + 9104.

It is an arithmetic number, because the mean of its divisors is an integer number (3828384).

Almost surely, 2^22953639 is an apocalyptic number.

22953639 is a deficient number, since it is larger than the sum of its proper divisors (7673433).

22953639 is a wasteful number, since it uses less digits than its factorization.

22953639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557.

The product of its digits is 87480, while the sum is 39.

The square root of 22953639 is about 4790.9956167795. The cubic root of 22953639 is about 284.1954904453.

The spelling of 22953639 in words is "twenty-two million, nine hundred fifty-three thousand, six hundred thirty-nine".