23787427 has 2 divisors, whose sum is σ = 23787428. Its totient is φ = 23787426.

The previous prime is 23787409. The next prime is 23787433. The reversal of 23787427 is 72478732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23787427 - 2¹¹ = 23785379 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23787427.

It is not a weakly prime, because it can be changed into another prime (23787527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11893713 + 11893714.

It is an arithmetic number, because the mean of its divisors is an integer number (11893714).

Almost surely, 2^23787427 is an apocalyptic number.

23787427 is a deficient number, since it is larger than the sum of its proper divisors (1).

23787427 is an equidigital number, since it uses as much as digits as its factorization.

23787427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131712, while the sum is 40.

The square root of 23787427 is about 4877.2355899628. The cubic root of 23787427 is about 287.5957669620.

The spelling of 23787427 in words is "twenty-three million, seven hundred eighty-seven thousand, four hundred twenty-seven".