23398407 has 24 divisors (see below), whose sum is σ = 34978944. Its totient is φ = 15062544.

The previous prime is 23398399. The next prime is 23398421. The reversal of 23398407 is 70489332.

It is not a de Polignac number, because 23398407 - 2³ = 23398399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23390407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39568 + ... + 40154.

It is an arithmetic number, because the mean of its divisors is an integer number (1457456).

Almost surely, 2^23398407 is an apocalyptic number.

23398407 is a deficient number, since it is larger than the sum of its proper divisors (11580537).

23398407 is a wasteful number, since it uses less digits than its factorization.

23398407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 23398407 is about 4837.1899900665. The cubic root of 23398407 is about 286.0193598644.

The spelling of 23398407 in words is "twenty-three million, three hundred ninety-eight thousand, four hundred seven".