22345679 has 4 divisors (see below), whose sum is σ = 22495800. Its totient is φ = 22195560.

The previous prime is 22345657. The next prime is 22345693. The reversal of 22345679 is 97654322.

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-22345679 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22345649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74837 + ... + 75134.

It is an arithmetic number, because the mean of its divisors is an integer number (5623950).

Almost surely, 2^22345679 is an apocalyptic number.

22345679 is a deficient number, since it is larger than the sum of its proper divisors (150121).

22345679 is a wasteful number, since it uses less digits than its factorization.

22345679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150120.

The product of its digits is 90720, while the sum is 38.

The square root of 22345679 is about 4727.1216400681. The cubic root of 22345679 is about 281.6638979844.

The spelling of 22345679 in words is "twenty-two million, three hundred forty-five thousand, six hundred seventy-nine".