23857357 has 2 divisors, whose sum is σ = 23857358. Its totient is φ = 23857356.

The previous prime is 23857333. The next prime is 23857373. The reversal of 23857357 is 75375832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15729156 + 8128201 = 3966^2 + 2851^2 .

It is a cyclic number.

It is not a de Polignac number, because 23857357 - 2²³ = 15468749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23857387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11928678 + 11928679.

It is an arithmetic number, because the mean of its divisors is an integer number (11928679).

Almost surely, 2^23857357 is an apocalyptic number.

It is an amenable number.

23857357 is a deficient number, since it is larger than the sum of its proper divisors (1).

23857357 is an equidigital number, since it uses as much as digits as its factorization.

23857357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176400, while the sum is 40.

The square root of 23857357 is about 4884.3993489476. The cubic root of 23857357 is about 287.8773148036.

The spelling of 23857357 in words is "twenty-three million, eight hundred fifty-seven thousand, three hundred fifty-seven".