23880999 has 4 divisors (see below), whose sum is σ = 31841336. Its totient is φ = 15920664.

The previous prime is 23880917. The next prime is 23881027. The reversal of 23880999 is 99908832.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23880999 - 2⁹ = 23880487 is a prime.

It is a super-2 number, since 2×23880999² = 1140604226476002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23880599) 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 in 3 ways as a sum of consecutive naturals, for example, 3980164 + ... + 3980169.

It is an arithmetic number, because the mean of its divisors is an integer number (7960334).

Almost surely, 2^23880999 is an apocalyptic number.

23880999 is a deficient number, since it is larger than the sum of its proper divisors (7960337).

23880999 is an equidigital number, since it uses as much as digits as its factorization.

23880999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7960336.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 23880999 is about 4886.8189039497. The cubic root of 23880999 is about 287.9723763050.

The spelling of 23880999 in words is "twenty-three million, eight hundred eighty thousand, nine hundred ninety-nine".