23097637 has 4 divisors (see below), whose sum is σ = 23661036. Its totient is φ = 22534240.

The previous prime is 23097631. The next prime is 23097667. The reversal of 23097637 is 73679032.

It is a Cunningham number, because it is equal to 4806²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1110916 + 21986721 = 1054^2 + 4689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23097637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23097596 and 23097605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23097631) 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, 281638 + ... + 281719.

It is an arithmetic number, because the mean of its divisors is an integer number (5915259).

Almost surely, 2^23097637 is an apocalyptic number.

It is an amenable number.

23097637 is a deficient number, since it is larger than the sum of its proper divisors (563399).

23097637 is an equidigital number, since it uses as much as digits as its factorization.

23097637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563398.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 23097637 is about 4806.0001040366. Note that the first 3 decimals coincide. The cubic root of 23097637 is about 284.7885453156.

The spelling of 23097637 in words is "twenty-three million, ninety-seven thousand, six hundred thirty-seven".