23387501 has 2 divisors, whose sum is σ = 23387502. Its totient is φ = 23387500.

The previous prime is 23387449. The next prime is 23387503. The reversal of 23387501 is 10578332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22705225 + 682276 = 4765^2 + 826^2 .

It is a cyclic number.

It is not a de Polignac number, because 23387501 - 2⁶ = 23387437 is a prime.

Together with 23387503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23387503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11693750 + 11693751.

It is an arithmetic number, because the mean of its divisors is an integer number (11693751).

Almost surely, 2^23387501 is an apocalyptic number.

It is an amenable number.

23387501 is a deficient number, since it is larger than the sum of its proper divisors (1).

23387501 is an equidigital number, since it uses as much as digits as its factorization.

23387501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 23387501 is about 4836.0625512911. The cubic root of 23387501 is about 285.9749150737.

The spelling of 23387501 in words is "twenty-three million, three hundred eighty-seven thousand, five hundred one".