23880091 has 2 divisors, whose sum is σ = 23880092. Its totient is φ = 23880090.

The previous prime is 23880071. The next prime is 23880113. The reversal of 23880091 is 19008832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23880091 - 2¹⁵ = 23847323 is a prime.

It is a super-3 number, since 3×23880091³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (23880011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11940045 + 11940046.

It is an arithmetic number, because the mean of its divisors is an integer number (11940046).

Almost surely, 2^23880091 is an apocalyptic number.

23880091 is a deficient number, since it is larger than the sum of its proper divisors (1).

23880091 is an equidigital number, since it uses as much as digits as its factorization.

23880091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 23880091 is about 4886.7260000945. The cubic root of 23880091 is about 287.9687265103.

The spelling of 23880091 in words is "twenty-three million, eight hundred eighty thousand, ninety-one".