23720841 has 12 divisors (see below), whose sum is σ = 34315632. Its totient is φ = 15789816.

The previous prime is 23720813. The next prime is 23720849. The reversal of 23720841 is 14802732.

It is not a de Polignac number, because 23720841 - 2⁷ = 23720713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23720849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5850 + ... + 9036.

It is an arithmetic number, because the mean of its divisors is an integer number (2859636).

Almost surely, 2^23720841 is an apocalyptic number.

It is an amenable number.

23720841 is a deficient number, since it is larger than the sum of its proper divisors (10594791).

23720841 is a wasteful number, since it uses less digits than its factorization.

23720841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020 (or 4017 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 23720841 is about 4870.4046033158. The cubic root of 23720841 is about 287.3271692174.

The spelling of 23720841 in words is "twenty-three million, seven hundred twenty thousand, eight hundred forty-one".