23720925 has 24 divisors (see below), whose sum is σ = 39372480. Its totient is φ = 12601600.

The previous prime is 23720923. The next prime is 23720941. The reversal of 23720925 is 52902732.

It is a happy number.

It is not a de Polignac number, because 23720925 - 2¹ = 23720923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23720892 and 23720901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23720923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26485 + ... + 27365.

It is an arithmetic number, because the mean of its divisors is an integer number (1640520).

Almost surely, 2^23720925 is an apocalyptic number.

23720925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23720925 is a deficient number, since it is larger than the sum of its proper divisors (15651555).

23720925 is a wasteful number, since it uses less digits than its factorization.

23720925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1248 counting only the distinct ones).

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

The square root of 23720925 is about 4870.4132268217. The cubic root of 23720925 is about 287.3275083770.

The spelling of 23720925 in words is "twenty-three million, seven hundred twenty thousand, nine hundred twenty-five".