23039725 has 6 divisors (see below), whose sum is σ = 28569290. Its totient is φ = 18431760.

The previous prime is 23039707. The next prime is 23039747. The reversal of 23039725 is 52793032.

It can be written as a sum of positive squares in 3 ways, for example, as 4351396 + 18688329 = 2086^2 + 4323^2 .

It is not a de Polignac number, because 23039725 - 2⁹ = 23039213 is a prime.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 460770 + ... + 460819.

Almost surely, 2^23039725 is an apocalyptic number.

23039725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23039725 is a deficient number, since it is larger than the sum of its proper divisors (5529565).

23039725 is an equidigital number, since it uses as much as digits as its factorization.

23039725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921599 (or 921594 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 23039725 is about 4799.9713540812. The cubic root of 23039725 is about 284.5503322417.

The spelling of 23039725 in words is "twenty-three million, thirty-nine thousand, seven hundred twenty-five".