23147427 has 4 divisors (see below), whose sum is σ = 30863240. Its totient is φ = 15431616.

The previous prime is 23147413. The next prime is 23147429. The reversal of 23147427 is 72474132.

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

It is not a de Polignac number, because 23147427 - 2⁶ = 23147363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23147394 and 23147403.

It is not an unprimeable number, because it can be changed into a prime (23147429) 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, 3857902 + ... + 3857907.

It is an arithmetic number, because the mean of its divisors is an integer number (7715810).

Almost surely, 2^23147427 is an apocalyptic number.

23147427 is a deficient number, since it is larger than the sum of its proper divisors (7715813).

23147427 is an equidigital number, since it uses as much as digits as its factorization.

23147427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7715812.

The product of its digits is 9408, while the sum is 30.

The square root of 23147427 is about 4811.1772987492. The cubic root of 23147427 is about 284.9930315317.

The spelling of 23147427 in words is "twenty-three million, one hundred forty-seven thousand, four hundred twenty-seven".