23421877 has 2 divisors, whose sum is σ = 23421878. Its totient is φ = 23421876.

The previous prime is 23421857. The next prime is 23421899. The reversal of 23421877 is 77812432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15046641 + 8375236 = 3879^2 + 2894^2 .

It is a cyclic number.

It is not a de Polignac number, because 23421877 - 2²³ = 15033269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23421847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710938 + 11710939.

It is an arithmetic number, because the mean of its divisors is an integer number (11710939).

Almost surely, 2^23421877 is an apocalyptic number.

It is an amenable number.

23421877 is a deficient number, since it is larger than the sum of its proper divisors (1).

23421877 is an equidigital number, since it uses as much as digits as its factorization.

23421877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 34.

The square root of 23421877 is about 4839.6153772795. The cubic root of 23421877 is about 286.1149594089.

Subtracting from 23421877 its product of digits (18816), we obtain a triangular number (23403061 = T₆₈₄₁).

It can be divided in two parts, 2342 and 1877, that multiplied together give a palindrome (4395934).

The spelling of 23421877 in words is "twenty-three million, four hundred twenty-one thousand, eight hundred seventy-seven".