23889977 has 4 divisors (see below), whose sum is σ = 23899776. Its totient is φ = 23880180.

The previous prime is 23889953. The next prime is 23889991. The reversal of 23889977 is 77998832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23889977 - 2¹⁸ = 23627833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23889937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1952 + ... + 7182.

It is an arithmetic number, because the mean of its divisors is an integer number (5974944).

Almost surely, 2^23889977 is an apocalyptic number.

It is an amenable number.

23889977 is a deficient number, since it is larger than the sum of its proper divisors (9799).

23889977 is an equidigital number, since it uses as much as digits as its factorization.

23889977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9798.

The product of its digits is 1524096, while the sum is 53.

The square root of 23889977 is about 4887.7374111137. The cubic root of 23889977 is about 288.0084592744.

The spelling of 23889977 in words is "twenty-three million, eight hundred eighty-nine thousand, nine hundred seventy-seven".