22764379 has 4 divisors (see below), whose sum is σ = 24833880. Its totient is φ = 20694880.

The previous prime is 22764373. The next prime is 22764397. The reversal of 22764379 is 97346722.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22764379 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a pancake number, because a pancake can be divided into 22764379 parts by 6747 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22764373) 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, 1034734 + ... + 1034755.

It is an arithmetic number, because the mean of its divisors is an integer number (6208470).

Almost surely, 2^22764379 is an apocalyptic number.

22764379 is a deficient number, since it is larger than the sum of its proper divisors (2069501).

22764379 is a wasteful number, since it uses less digits than its factorization.

22764379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069500.

The product of its digits is 127008, while the sum is 40.

The square root of 22764379 is about 4771.2030977522. The cubic root of 22764379 is about 283.4122399222.

It can be divided in two parts, 227643 and 79, that added together give a palindrome (227722).

The spelling of 22764379 in words is "twenty-two million, seven hundred sixty-four thousand, three hundred seventy-nine".