22345579 has 2 divisors, whose sum is σ = 22345580. Its totient is φ = 22345578.

The previous prime is 22345571. The next prime is 22345597. The reversal of 22345579 is 97554322.

Together with next prime (22345597) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22345579 - 2³ = 22345571 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (22345571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11172789 + 11172790.

It is an arithmetic number, because the mean of its divisors is an integer number (11172790).

Almost surely, 2^22345579 is an apocalyptic number.

22345579 is a deficient number, since it is larger than the sum of its proper divisors (1).

22345579 is an equidigital number, since it uses as much as digits as its factorization.

22345579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 37.

The square root of 22345579 is about 4727.1110627951. Note that the first 3 decimals coincide. The cubic root of 22345579 is about 281.6634778222.

The spelling of 22345579 in words is "twenty-two million, three hundred forty-five thousand, five hundred seventy-nine".