23732239 has 2 divisors, whose sum is σ = 23732240. Its totient is φ = 23732238.

The previous prime is 23732213. The next prime is 23732257. The reversal of 23732239 is 93223732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23732239 - 2⁹ = 23731727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23732239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23732209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11866119 + 11866120.

It is an arithmetic number, because the mean of its divisors is an integer number (11866120).

Almost surely, 2^23732239 is an apocalyptic number.

23732239 is a deficient number, since it is larger than the sum of its proper divisors (1).

23732239 is an equidigital number, since it uses as much as digits as its factorization.

23732239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 31.

The square root of 23732239 is about 4871.5745914437. The cubic root of 23732239 is about 287.3731826319.

The spelling of 23732239 in words is "twenty-three million, seven hundred thirty-two thousand, two hundred thirty-nine".