23797720 has 32 divisors (see below), whose sum is σ = 53745120. Its totient is φ = 9483520.

The previous prime is 23797693. The next prime is 23797757. The reversal of 23797720 is 2779732.

It is a self number, because there is not a number n which added to its sum of digits gives 23797720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11484 + ... + 13396.

It is an arithmetic number, because the mean of its divisors is an integer number (1679535).

Almost surely, 2^23797720 is an apocalyptic number.

23797720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23797720 is an abundant number, since it is smaller than the sum of its proper divisors (29947400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23797720 is a wasteful number, since it uses less digits than its factorization.

23797720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 37.

The square root of 23797720 is about 4878.2906842459. The cubic root of 23797720 is about 287.6372426032.

The spelling of 23797720 in words is "twenty-three million, seven hundred ninety-seven thousand, seven hundred twenty".