23578613 has 2 divisors, whose sum is σ = 23578614. Its totient is φ = 23578612.

The previous prime is 23578591. The next prime is 23578619. The reversal of 23578613 is 31687532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22448644 + 1129969 = 4738^2 + 1063^2 .

It is a cyclic number.

It is not a de Polignac number, because 23578613 - 2⁶ = 23578549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23578619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11789306 + 11789307.

It is an arithmetic number, because the mean of its divisors is an integer number (11789307).

Almost surely, 2^23578613 is an apocalyptic number.

It is an amenable number.

23578613 is a deficient number, since it is larger than the sum of its proper divisors (1).

23578613 is an equidigital number, since it uses as much as digits as its factorization.

23578613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 23578613 is about 4855.7813995278. The cubic root of 23578613 is about 286.7517551333.

The spelling of 23578613 in words is "twenty-three million, five hundred seventy-eight thousand, six hundred thirteen".