23091877 has 2 divisors, whose sum is σ = 23091878. Its totient is φ = 23091876.

The previous prime is 23091857. The next prime is 23091883. The reversal of 23091877 is 77819032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14791716 + 8300161 = 3846^2 + 2881^2 .

It is a cyclic number.

It is not a de Polignac number, because 23091877 - 2¹⁵ = 23059109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23091857) 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, 11545938 + 11545939.

It is an arithmetic number, because the mean of its divisors is an integer number (11545939).

Almost surely, 2^23091877 is an apocalyptic number.

It is an amenable number.

23091877 is a deficient number, since it is larger than the sum of its proper divisors (1).

23091877 is an equidigital number, since it uses as much as digits as its factorization.

23091877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 23091877 is about 4805.4008157489. The cubic root of 23091877 is about 284.7648701896.

It can be divided in two parts, 2309 and 1877, that added together give a triangular number (4186 = T₉₁).

The spelling of 23091877 in words is "twenty-three million, ninety-one thousand, eight hundred seventy-seven".