23920725 has 24 divisors (see below), whose sum is σ = 39774240. Its totient is φ = 12685120.

The previous prime is 23920711. The next prime is 23920733. The reversal of 23920725 is 52702932.

It is a happy number.

It is not a de Polignac number, because 23920725 - 2⁶ = 23920661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23920692 and 23920701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13966 + ... + 15584.

It is an arithmetic number, because the mean of its divisors is an integer number (1657260).

Almost surely, 2^23920725 is an apocalyptic number.

23920725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23920725 is a deficient number, since it is larger than the sum of its proper divisors (15853515).

23920725 is a wasteful number, since it uses less digits than its factorization.

23920725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 23920725 is about 4890.8818223302. The cubic root of 23920725 is about 288.1319683585.

The spelling of 23920725 in words is "twenty-three million, nine hundred twenty thousand, seven hundred twenty-five".