23720693 has 4 divisors (see below), whose sum is σ = 24045708. Its totient is φ = 23395680.

The previous prime is 23720687. The next prime is 23720707. The reversal of 23720693 is 39602732.

It is a happy number.

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 6265009 + 17455684 = 2503^2 + 4178^2 .

It is a cyclic number.

It is not a de Polignac number, because 23720693 - 2⁴ = 23720677 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 (23720633) 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, 162398 + ... + 162543.

It is an arithmetic number, because the mean of its divisors is an integer number (6011427).

Almost surely, 2^23720693 is an apocalyptic number.

It is an amenable number.

23720693 is a deficient number, since it is larger than the sum of its proper divisors (325015).

23720693 is an equidigital number, since it uses as much as digits as its factorization.

23720693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325014.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 23720693 is about 4870.3894094826. The cubic root of 23720693 is about 287.3265716485.

The spelling of 23720693 in words is "twenty-three million, seven hundred twenty thousand, six hundred ninety-three".