23498993 has 4 divisors (see below), whose sum is σ = 26856000. Its totient is φ = 20141988.

The previous prime is 23498989. The next prime is 23498999. The reversal of 23498993 is 39989432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23498993 - 2² = 23498989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23498999) 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, 1678493 + ... + 1678506.

It is an arithmetic number, because the mean of its divisors is an integer number (6714000).

Almost surely, 2^23498993 is an apocalyptic number.

It is an amenable number.

23498993 is a deficient number, since it is larger than the sum of its proper divisors (3357007).

23498993 is an equidigital number, since it uses as much as digits as its factorization.

23498993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357006.

The product of its digits is 419904, while the sum is 47.

The square root of 23498993 is about 4847.5759921841. The cubic root of 23498993 is about 286.4286244252.

The spelling of 23498993 in words is "twenty-three million, four hundred ninety-eight thousand, nine hundred ninety-three".