23828731 has 2 divisors, whose sum is σ = 23828732. Its totient is φ = 23828730.

The previous prime is 23828723. The next prime is 23828737. The reversal of 23828731 is 13782832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23828731 - 2³ = 23828723 is a prime.

It is a super-2 number, since 2×23828731² = 1135616842140722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23828737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11914365 + 11914366.

It is an arithmetic number, because the mean of its divisors is an integer number (11914366).

Almost surely, 2^23828731 is an apocalyptic number.

23828731 is a deficient number, since it is larger than the sum of its proper divisors (1).

23828731 is an equidigital number, since it uses as much as digits as its factorization.

23828731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 23828731 is about 4881.4681193264. The cubic root of 23828731 is about 287.7621291721.

The spelling of 23828731 in words is "twenty-three million, eight hundred twenty-eight thousand, seven hundred thirty-one".