23789720 has 32 divisors (see below), whose sum is σ = 53816400. Its totient is φ = 9464448.

The previous prime is 23789699. The next prime is 23789747. The reversal of 23789720 is 2798732.

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, 6371 + ... + 9389.

Almost surely, 2^23789720 is an apocalyptic number.

23789720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23789720 is an abundant number, since it is smaller than the sum of its proper divisors (30026680).

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

23789720 is a wasteful number, since it uses less digits than its factorization.

23789720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227 (or 3223 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 23789720 is about 4877.4706559855. The cubic root of 23789720 is about 287.6050076407.

The spelling of 23789720 in words is "twenty-three million, seven hundred eighty-nine thousand, seven hundred twenty".