23775247 has 4 divisors (see below), whose sum is σ = 23793336. Its totient is φ = 23757160.

The previous prime is 23775239. The next prime is 23775263. The reversal of 23775247 is 74257732.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23775247 - 2³ = 23775239 is a prime.

It is a super-2 number, since 2×23775247² = 1130524739822018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23775277) 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, 6904 + ... + 9757.

It is an arithmetic number, because the mean of its divisors is an integer number (5948334).

Almost surely, 2^23775247 is an apocalyptic number.

23775247 is a deficient number, since it is larger than the sum of its proper divisors (18089).

23775247 is a wasteful number, since it uses less digits than its factorization.

23775247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18088.

The product of its digits is 82320, while the sum is 37.

The square root of 23775247 is about 4875.9867719263. The cubic root of 23775247 is about 287.5466721961.

It can be divided in two parts, 2 and 3775247, that added together give a square (3775249 = 1943²).

The spelling of 23775247 in words is "twenty-three million, seven hundred seventy-five thousand, two hundred forty-seven".