23390173 has 2 divisors, whose sum is σ = 23390174. Its totient is φ = 23390172.

The previous prime is 23390117. The next prime is 23390183. The reversal of 23390173 is 37109332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13823524 + 9566649 = 3718^2 + 3093^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23390173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23390183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11695086 + 11695087.

It is an arithmetic number, because the mean of its divisors is an integer number (11695087).

Almost surely, 2^23390173 is an apocalyptic number.

It is an amenable number.

23390173 is a deficient number, since it is larger than the sum of its proper divisors (1).

23390173 is an equidigital number, since it uses as much as digits as its factorization.

23390173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 23390173 is about 4836.3388012008. The cubic root of 23390173 is about 285.9858054474.

The spelling of 23390173 in words is "twenty-three million, three hundred ninety thousand, one hundred seventy-three".