23642477 has 2 divisors, whose sum is σ = 23642478. Its totient is φ = 23642476.

The previous prime is 23642471. The next prime is 23642513. The reversal of 23642477 is 77424632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15768841 + 7873636 = 3971^2 + 2806^2 .

It is a cyclic number.

It is not a de Polignac number, because 23642477 - 2¹⁸ = 23380333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23642471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11821238 + 11821239.

It is an arithmetic number, because the mean of its divisors is an integer number (11821239).

Almost surely, 2^23642477 is an apocalyptic number.

It is an amenable number.

23642477 is a deficient number, since it is larger than the sum of its proper divisors (1).

23642477 is an equidigital number, since it uses as much as digits as its factorization.

23642477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 35.

The square root of 23642477 is about 4862.3530311980. The cubic root of 23642477 is about 287.0104161622.

The spelling of 23642477 in words is "twenty-three million, six hundred forty-two thousand, four hundred seventy-seven".