23754721 has 2 divisors, whose sum is σ = 23754722. Its totient is φ = 23754720.

The previous prime is 23754719. The next prime is 23754727. The reversal of 23754721 is 12745732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21902400 + 1852321 = 4680^2 + 1361^2 .

It is a cyclic number.

It is not a de Polignac number, because 23754721 - 2¹ = 23754719 is a prime.

Together with 23754719, it forms a pair of twin primes.

It is equal to p_1492672 and since 23754721 and 1492672 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (23754727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11877360 + 11877361.

It is an arithmetic number, because the mean of its divisors is an integer number (11877361).

Almost surely, 2^23754721 is an apocalyptic number.

It is an amenable number.

23754721 is a deficient number, since it is larger than the sum of its proper divisors (1).

23754721 is an equidigital number, since it uses as much as digits as its factorization.

23754721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 31.

The square root of 23754721 is about 4873.8815127165. The cubic root of 23754721 is about 287.4638986806.

The spelling of 23754721 in words is "twenty-three million, seven hundred fifty-four thousand, seven hundred twenty-one".