23398437 has 8 divisors (see below), whose sum is σ = 31519936. Its totient is φ = 15437952.

The previous prime is 23398421. The next prime is 23398451. The reversal of 23398437 is 73489332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23398437 - 2⁴ = 23398421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23398395 and 23398404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23398237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39913 + ... + 40494.

It is an arithmetic number, because the mean of its divisors is an integer number (3939992).

Almost surely, 2^23398437 is an apocalyptic number.

It is an amenable number.

23398437 is a deficient number, since it is larger than the sum of its proper divisors (8121499).

23398437 is an equidigital number, since it uses as much as digits as its factorization.

23398437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80507.

The product of its digits is 108864, while the sum is 39.

The square root of 23398437 is about 4837.1930910395. The cubic root of 23398437 is about 286.0194821032.

The spelling of 23398437 in words is "twenty-three million, three hundred ninety-eight thousand, four hundred thirty-seven".