23090637 has 4 divisors (see below), whose sum is σ = 30787520. Its totient is φ = 15393756.

The previous prime is 23090633. The next prime is 23090647. The reversal of 23090637 is 73609032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23090637 - 2² = 23090633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23090633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3848437 + ... + 3848442.

It is an arithmetic number, because the mean of its divisors is an integer number (7696880).

Almost surely, 2^23090637 is an apocalyptic number.

It is an amenable number.

23090637 is a deficient number, since it is larger than the sum of its proper divisors (7696883).

23090637 is an equidigital number, since it uses as much as digits as its factorization.

23090637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7696882.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 23090637 is about 4805.2717925212. The cubic root of 23090637 is about 284.7597729461.

Adding to 23090637 its reverse (73609032), we get a palindrome (96699669).

The spelling of 23090637 in words is "twenty-three million, ninety thousand, six hundred thirty-seven".