23978607 has 4 divisors (see below), whose sum is σ = 31971480. Its totient is φ = 15985736.

The previous prime is 23978599. The next prime is 23978609. The reversal of 23978607 is 70687932.

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 23978607 - 2³ = 23978599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23978609) 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, 3996432 + ... + 3996437.

It is an arithmetic number, because the mean of its divisors is an integer number (7992870).

Almost surely, 2^23978607 is an apocalyptic number.

23978607 is a deficient number, since it is larger than the sum of its proper divisors (7992873).

23978607 is an equidigital number, since it uses as much as digits as its factorization.

23978607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7992872.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 23978607 is about 4896.7955848698. The cubic root of 23978607 is about 288.3641829028.

The spelling of 23978607 in words is "twenty-three million, nine hundred seventy-eight thousand, six hundred seven".