22639313 has 4 divisors (see below), whose sum is σ = 22655808. Its totient is φ = 22622820.

The previous prime is 22639283. The next prime is 22639319. The reversal of 22639313 is 31393622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22639313 - 2¹⁰ = 22638289 is a prime.

It is a super-2 number, since 2×22639313² = 1025076986223938, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22639319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5981 + ... + 9002.

It is an arithmetic number, because the mean of its divisors is an integer number (5663952).

Almost surely, 2^22639313 is an apocalyptic number.

It is an amenable number.

22639313 is a deficient number, since it is larger than the sum of its proper divisors (16495).

22639313 is a wasteful number, since it uses less digits than its factorization.

22639313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16494.

The product of its digits is 5832, while the sum is 29.

The square root of 22639313 is about 4758.0787088908. The cubic root of 22639313 is about 282.8922704660.

The spelling of 22639313 in words is "twenty-two million, six hundred thirty-nine thousand, three hundred thirteen".