23397907 has 4 divisors (see below), whose sum is σ = 25197760. Its totient is φ = 21598056.

The previous prime is 23397883. The next prime is 23397929. The reversal of 23397907 is 70979332.

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 23397907 - 2²³ = 15009299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23397907.

It is not an unprimeable number, because it can be changed into a prime (23397947) 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, 899907 + ... + 899932.

It is an arithmetic number, because the mean of its divisors is an integer number (6299440).

Almost surely, 2^23397907 is an apocalyptic number.

23397907 is a deficient number, since it is larger than the sum of its proper divisors (1799853).

23397907 is a wasteful number, since it uses less digits than its factorization.

23397907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799852.

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 23397907 is about 4837.1383068918. The cubic root of 23397907 is about 286.0173225363.

The spelling of 23397907 in words is "twenty-three million, three hundred ninety-seven thousand, nine hundred seven".