22764479 has 4 divisors (see below), whose sum is σ = 24103584. Its totient is φ = 21425376.

The previous prime is 22764473. The next prime is 22764481. The reversal of 22764479 is 97446722.

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 22764479 - 2⁴ = 22764463 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 (22764473) 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, 669527 + ... + 669560.

It is an arithmetic number, because the mean of its divisors is an integer number (6025896).

Almost surely, 2^22764479 is an apocalyptic number.

22764479 is a deficient number, since it is larger than the sum of its proper divisors (1339105).

22764479 is a wasteful number, since it uses less digits than its factorization.

22764479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339104.

The product of its digits is 169344, while the sum is 41.

The square root of 22764479 is about 4771.2135772778. The cubic root of 22764479 is about 283.4126549154.

The spelling of 22764479 in words is "twenty-two million, seven hundred sixty-four thousand, four hundred seventy-nine".