23422387 has 4 divisors (see below), whose sum is σ = 23432320. Its totient is φ = 23412456.

The previous prime is 23422381. The next prime is 23422393. The reversal of 23422387 is 78322432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (23422381) and next prime (23422393).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23422387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23422381) 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, 814 + ... + 6892.

It is an arithmetic number, because the mean of its divisors is an integer number (5858080).

Almost surely, 2^23422387 is an apocalyptic number.

23422387 is a deficient number, since it is larger than the sum of its proper divisors (9933).

23422387 is an equidigital number, since it uses as much as digits as its factorization.

23422387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9932.

The product of its digits is 16128, while the sum is 31.

The square root of 23422387 is about 4839.6680671302. The cubic root of 23422387 is about 286.1170360653.

The spelling of 23422387 in words is "twenty-three million, four hundred twenty-two thousand, three hundred eighty-seven".