23772571 has 2 divisors, whose sum is σ = 23772572. Its totient is φ = 23772570.

The previous prime is 23772559. The next prime is 23772577. The reversal of 23772571 is 17527732.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23772571 - 2²¹ = 21675419 is a prime.

It is not a weakly prime, because it can be changed into another prime (23772577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11886285 + 11886286.

It is an arithmetic number, because the mean of its divisors is an integer number (11886286).

Almost surely, 2^23772571 is an apocalyptic number.

23772571 is a deficient number, since it is larger than the sum of its proper divisors (1).

23772571 is an equidigital number, since it uses as much as digits as its factorization.

23772571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20580, while the sum is 34.

The square root of 23772571 is about 4875.7123582098. The cubic root of 23772571 is about 287.5358836118.

The spelling of 23772571 in words is "twenty-three million, seven hundred seventy-two thousand, five hundred seventy-one".