23978895 has 16 divisors (see below), whose sum is σ = 38662272. Its totient is φ = 12690080.

The previous prime is 23978881. The next prime is 23978909. The reversal of 23978895 is 59887932.

It is an interprime number because it is at equal distance from previous prime (23978881) and next prime (23978909).

It is not a de Polignac number, because 23978895 - 2⁴ = 23978879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4137 + ... + 8066.

It is an arithmetic number, because the mean of its divisors is an integer number (2416392).

Almost surely, 2^23978895 is an apocalyptic number.

23978895 is a deficient number, since it is larger than the sum of its proper divisors (14683377).

23978895 is a wasteful number, since it uses less digits than its factorization.

23978895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12342.

The product of its digits is 1088640, while the sum is 51.

The square root of 23978895 is about 4896.8249917676. The cubic root of 23978895 is about 288.3653373840.

The spelling of 23978895 in words is "twenty-three million, nine hundred seventy-eight thousand, eight hundred ninety-five".