23978977 has 8 divisors (see below), whose sum is σ = 26716032. Its totient is φ = 21334800.

The previous prime is 23978971. The next prime is 23978989. The reversal of 23978977 is 77987932.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23978977 - 2¹⁹ = 23454689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23978971) 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, 22674 + ... + 23707.

It is an arithmetic number, because the mean of its divisors is an integer number (3339504).

Almost surely, 2^23978977 is an apocalyptic number.

It is an amenable number.

23978977 is a deficient number, since it is larger than the sum of its proper divisors (2737055).

23978977 is a wasteful number, since it uses less digits than its factorization.

23978977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46439.

The product of its digits is 1333584, while the sum is 52.

The square root of 23978977 is about 4896.8333645326. The cubic root of 23978977 is about 288.3656660888.

The spelling of 23978977 in words is "twenty-three million, nine hundred seventy-eight thousand, nine hundred seventy-seven".