22723579 has 2 divisors, whose sum is σ = 22723580. Its totient is φ = 22723578.

The previous prime is 22723567. The next prime is 22723583. The reversal of 22723579 is 97532722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22723579 - 2⁷ = 22723451 is a prime.

It is a super-2 number, since 2×22723579² = 1032722085138482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22723529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11361789 + 11361790.

It is an arithmetic number, because the mean of its divisors is an integer number (11361790).

Almost surely, 2^22723579 is an apocalyptic number.

22723579 is a deficient number, since it is larger than the sum of its proper divisors (1).

22723579 is an equidigital number, since it uses as much as digits as its factorization.

22723579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 37.

The square root of 22723579 is about 4766.9255291015. The cubic root of 22723579 is about 283.2428212231.

The spelling of 22723579 in words is "twenty-two million, seven hundred twenty-three thousand, five hundred seventy-nine".