23808491 has 4 divisors (see below), whose sum is σ = 27209712. Its totient is φ = 20407272.

The previous prime is 23808481. The next prime is 23808497. The reversal of 23808491 is 19480832.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23808491 - 2¹⁰ = 23807467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23808497) 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, 1700600 + ... + 1700613.

It is an arithmetic number, because the mean of its divisors is an integer number (6802428).

Almost surely, 2^23808491 is an apocalyptic number.

23808491 is a deficient number, since it is larger than the sum of its proper divisors (3401221).

23808491 is an equidigital number, since it uses as much as digits as its factorization.

23808491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401220.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 23808491 is about 4879.3945321115. The cubic root of 23808491 is about 287.6806315420.

The spelling of 23808491 in words is "twenty-three million, eight hundred eight thousand, four hundred ninety-one".