23013637 has 2 divisors, whose sum is σ = 23013638. Its totient is φ = 23013636.

The previous prime is 23013611. The next prime is 23013647. The reversal of 23013637 is 73631032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17969121 + 5044516 = 4239^2 + 2246^2 .

It is a cyclic number.

It is not a de Polignac number, because 23013637 - 2⁷ = 23013509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23013647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506818 + 11506819.

It is an arithmetic number, because the mean of its divisors is an integer number (11506819).

Almost surely, 2^23013637 is an apocalyptic number.

It is an amenable number.

23013637 is a deficient number, since it is larger than the sum of its proper divisors (1).

23013637 is an equidigital number, since it uses as much as digits as its factorization.

23013637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 23013637 is about 4797.2530681631. The cubic root of 23013637 is about 284.4428924080.

Adding to 23013637 its reverse (73631032), we get a palindrome (96644669).

The spelling of 23013637 in words is "twenty-three million, thirteen thousand, six hundred thirty-seven".