22839479 has 4 divisors (see below), whose sum is σ = 24596376. Its totient is φ = 21082584.

The previous prime is 22839469. The next prime is 22839491. The reversal of 22839479 is 97493822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22839479 - 2²⁴ = 6062263 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 (22839409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878429 + ... + 878454.

It is an arithmetic number, because the mean of its divisors is an integer number (6149094).

Almost surely, 2^22839479 is an apocalyptic number.

22839479 is a deficient number, since it is larger than the sum of its proper divisors (1756897).

22839479 is a wasteful number, since it uses less digits than its factorization.

22839479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756896.

The product of its digits is 217728, while the sum is 44.

The square root of 22839479 is about 4779.0667499000. The cubic root of 22839479 is about 283.7235581200.

The spelling of 22839479 in words is "twenty-two million, eight hundred thirty-nine thousand, four hundred seventy-nine".