22345993 has 2 divisors, whose sum is σ = 22345994. Its totient is φ = 22345992.

The previous prime is 22345969. The next prime is 22345997. The reversal of 22345993 is 39954322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21557449 + 788544 = 4643^2 + 888^2 .

It is a cyclic number.

It is not a de Polignac number, because 22345993 - 2¹⁷ = 22214921 is a prime.

It is not a weakly prime, because it can be changed into another prime (22345997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11172996 + 11172997.

It is an arithmetic number, because the mean of its divisors is an integer number (11172997).

Almost surely, 2^22345993 is an apocalyptic number.

It is an amenable number.

22345993 is a deficient number, since it is larger than the sum of its proper divisors (1).

22345993 is an equidigital number, since it uses as much as digits as its factorization.

22345993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 37.

The square root of 22345993 is about 4727.1548525514. The cubic root of 22345993 is about 281.6652172857.

The spelling of 22345993 in words is "twenty-two million, three hundred forty-five thousand, nine hundred ninety-three".