23247929 has 2 divisors, whose sum is σ = 23247930. Its totient is φ = 23247928.

The previous prime is 23247899. The next prime is 23247949. The reversal of 23247929 is 92974232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20839225 + 2408704 = 4565^2 + 1552^2 .

It is a cyclic number.

It is not a de Polignac number, because 23247929 - 2⁸ = 23247673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23247892 and 23247901.

It is not a weakly prime, because it can be changed into another prime (23247949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11623964 + 11623965.

It is an arithmetic number, because the mean of its divisors is an integer number (11623965).

Almost surely, 2^23247929 is an apocalyptic number.

It is an amenable number.

23247929 is a deficient number, since it is larger than the sum of its proper divisors (1).

23247929 is an equidigital number, since it uses as much as digits as its factorization.

23247929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 23247929 is about 4821.6106230180. The cubic root of 23247929 is about 285.4048989933.

The spelling of 23247929 in words is "twenty-three million, two hundred forty-seven thousand, nine hundred twenty-nine".