23390407 has 2 divisors, whose sum is σ = 23390408. Its totient is φ = 23390406.

The previous prime is 23390369. The next prime is 23390413. The reversal of 23390407 is 70409332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23390407 - 2¹⁵ = 23357639 is a prime.

It is a super-2 number, since 2×23390407² = 1094222279251298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23390417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11695203 + 11695204.

It is an arithmetic number, because the mean of its divisors is an integer number (11695204).

Almost surely, 2^23390407 is an apocalyptic number.

23390407 is a deficient number, since it is larger than the sum of its proper divisors (1).

23390407 is an equidigital number, since it uses as much as digits as its factorization.

23390407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 23390407 is about 4836.3629929938. The cubic root of 23390407 is about 285.9867591308.

Adding to 23390407 its reverse (70409332), we get a palindrome (93799739).

The spelling of 23390407 in words is "twenty-three million, three hundred ninety thousand, four hundred seven".