22989639 has 8 divisors (see below), whose sum is σ = 32266240. Its totient is φ = 14519736.

The previous prime is 22989623. The next prime is 22989641. The reversal of 22989639 is 93698922.

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

It is not a de Polignac number, because 22989639 - 2⁴ = 22989623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22989689) 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, 201607 + ... + 201720.

It is an arithmetic number, because the mean of its divisors is an integer number (4033280).

Almost surely, 2^22989639 is an apocalyptic number.

22989639 is a deficient number, since it is larger than the sum of its proper divisors (9276601).

22989639 is a wasteful number, since it uses less digits than its factorization.

22989639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403349.

The product of its digits is 419904, while the sum is 48.

The square root of 22989639 is about 4794.7511927106. The cubic root of 22989639 is about 284.3439882295.

The spelling of 22989639 in words is "twenty-two million, nine hundred eighty-nine thousand, six hundred thirty-nine".