23495729 has 2 divisors, whose sum is σ = 23495730. Its totient is φ = 23495728.

The previous prime is 23495701. The next prime is 23495749. The reversal of 23495729 is 92759432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14615329 + 8880400 = 3823^2 + 2980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23495729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23495749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11747864 + 11747865.

It is an arithmetic number, because the mean of its divisors is an integer number (11747865).

Almost surely, 2^23495729 is an apocalyptic number.

It is an amenable number.

23495729 is a deficient number, since it is larger than the sum of its proper divisors (1).

23495729 is an equidigital number, since it uses as much as digits as its factorization.

23495729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 23495729 is about 4847.2393173847. The cubic root of 23495729 is about 286.4153622069.

The spelling of 23495729 in words is "twenty-three million, four hundred ninety-five thousand, seven hundred twenty-nine".