23947901 has 2 divisors, whose sum is σ = 23947902. Its totient is φ = 23947900.

The previous prime is 23947829. The next prime is 23947919. The reversal of 23947901 is 10974932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23136100 + 811801 = 4810^2 + 901^2 .

It is a cyclic number.

It is not a de Polignac number, because 23947901 - 2¹⁰ = 23946877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23947601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11973950 + 11973951.

It is an arithmetic number, because the mean of its divisors is an integer number (11973951).

Almost surely, 2^23947901 is an apocalyptic number.

It is an amenable number.

23947901 is a deficient number, since it is larger than the sum of its proper divisors (1).

23947901 is an equidigital number, since it uses as much as digits as its factorization.

23947901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 23947901 is about 4893.6592648038. The cubic root of 23947901 is about 288.2410412922.

The spelling of 23947901 in words is "twenty-three million, nine hundred forty-seven thousand, nine hundred one".