23297977 has 4 divisors (see below), whose sum is σ = 23645776. Its totient is φ = 22950180.

The previous prime is 23297951. The next prime is 23297983. The reversal of 23297977 is 77979232.

It is a happy number.

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 23297977 - 2⁷ = 23297849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23297917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173799 + ... + 173932.

It is an arithmetic number, because the mean of its divisors is an integer number (5911444).

Almost surely, 2^23297977 is an apocalyptic number.

It is an amenable number.

23297977 is a deficient number, since it is larger than the sum of its proper divisors (347799).

23297977 is an equidigital number, since it uses as much as digits as its factorization.

23297977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347798.

The product of its digits is 333396, while the sum is 46.

The square root of 23297977 is about 4826.7977997840. The cubic root of 23297977 is about 285.6095581767.

The spelling of 23297977 in words is "twenty-three million, two hundred ninety-seven thousand, nine hundred seventy-seven".