23459899 has 4 divisors (see below), whose sum is σ = 23521536. Its totient is φ = 23398264.

The previous prime is 23459879. The next prime is 23459903. The reversal of 23459899 is 99895432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23459899 is a prime.

It is a super-2 number, since 2×23459899² = 1100733722180402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23459809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30244 + ... + 31009.

It is an arithmetic number, because the mean of its divisors is an integer number (5880384).

Almost surely, 2^23459899 is an apocalyptic number.

23459899 is a deficient number, since it is larger than the sum of its proper divisors (61637).

23459899 is an equidigital number, since it uses as much as digits as its factorization.

23459899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61636.

The product of its digits is 699840, while the sum is 49.

The square root of 23459899 is about 4843.5419890820. The cubic root of 23459899 is about 286.2696976714.

The spelling of 23459899 in words is "twenty-three million, four hundred fifty-nine thousand, eight hundred ninety-nine".