23634257 has 2 divisors, whose sum is σ = 23634258. Its totient is φ = 23634256.

The previous prime is 23634253. The next prime is 23634313. The reversal of 23634257 is 75243632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15928081 + 7706176 = 3991^2 + 2776^2 .

It is a cyclic number.

It is not a de Polignac number, because 23634257 - 2² = 23634253 is a prime.

It is not a weakly prime, because it can be changed into another prime (23634251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11817128 + 11817129.

It is an arithmetic number, because the mean of its divisors is an integer number (11817129).

Almost surely, 2^23634257 is an apocalyptic number.

It is an amenable number.

23634257 is a deficient number, since it is larger than the sum of its proper divisors (1).

23634257 is an equidigital number, since it uses as much as digits as its factorization.

23634257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 32.

The square root of 23634257 is about 4861.5076879503. The cubic root of 23634257 is about 286.9771497791.

Adding to 23634257 its reverse (75243632), we get a palindrome (98877889).

The spelling of 23634257 in words is "twenty-three million, six hundred thirty-four thousand, two hundred fifty-seven".