23488891 has 2 divisors, whose sum is σ = 23488892. Its totient is φ = 23488890.

The previous prime is 23488873. The next prime is 23488919. The reversal of 23488891 is 19888432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23488891 - 2⁷ = 23488763 is a prime.

It is not a weakly prime, because it can be changed into another prime (23489891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11744445 + 11744446.

It is an arithmetic number, because the mean of its divisors is an integer number (11744446).

Almost surely, 2^23488891 is an apocalyptic number.

23488891 is a deficient number, since it is larger than the sum of its proper divisors (1).

23488891 is an equidigital number, since it uses as much as digits as its factorization.

23488891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 43.

The square root of 23488891 is about 4846.5339161095. The cubic root of 23488891 is about 286.3875742024.

The spelling of 23488891 in words is "twenty-three million, four hundred eighty-eight thousand, eight hundred ninety-one".