23401577 has 2 divisors, whose sum is σ = 23401578. Its totient is φ = 23401576.

The previous prime is 23401549. The next prime is 23401591. The reversal of 23401577 is 77510432.

23401577 is nontrivially palindromic in base 15.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17106496 + 6295081 = 4136^2 + 2509^2 .

It is a cyclic number.

It is not a de Polignac number, because 23401577 - 2⁶ = 23401513 is a prime.

It is a Chen prime.

It is equal to p_1471907 and since 23401577 and 1471907 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (23401517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700788 + 11700789.

It is an arithmetic number, because the mean of its divisors is an integer number (11700789).

Almost surely, 2^23401577 is an apocalyptic number.

It is an amenable number.

23401577 is a deficient number, since it is larger than the sum of its proper divisors (1).

23401577 is an equidigital number, since it uses as much as digits as its factorization.

23401577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 23401577 is about 4837.5176485466. The cubic root of 23401577 is about 286.0322758495.

The spelling of 23401577 in words is "twenty-three million, four hundred one thousand, five hundred seventy-seven".