23147877 has 4 divisors (see below), whose sum is σ = 30863840. Its totient is φ = 15431916.

The previous prime is 23147857. The next prime is 23147899. The reversal of 23147877 is 77874132.

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.

It is not a de Polignac number, because 23147877 - 2⁷ = 23147749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23147807) 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, 3857977 + ... + 3857982.

It is an arithmetic number, because the mean of its divisors is an integer number (7715960).

Almost surely, 2^23147877 is an apocalyptic number.

It is an amenable number.

23147877 is a deficient number, since it is larger than the sum of its proper divisors (7715963).

23147877 is an equidigital number, since it uses as much as digits as its factorization.

23147877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7715962.

The product of its digits is 65856, while the sum is 39.

The square root of 23147877 is about 4811.2240646222. The cubic root of 23147877 is about 284.9948783321.

The spelling of 23147877 in words is "twenty-three million, one hundred forty-seven thousand, eight hundred seventy-seven".