23725749 has 8 divisors (see below), whose sum is σ = 31731232. Its totient is φ = 15768720.

The previous prime is 23725747. The next prime is 23725753. The reversal of 23725749 is 94752732.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23725749 - 2¹ = 23725747 is a prime.

It is a super-2 number, since 2×23725749² = 1125822331222002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23725747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10954 + ... + 12939.

It is an arithmetic number, because the mean of its divisors is an integer number (3966404).

Almost surely, 2^23725749 is an apocalyptic number.

It is an amenable number.

23725749 is a deficient number, since it is larger than the sum of its proper divisors (8005483).

23725749 is a wasteful number, since it uses less digits than its factorization.

23725749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24227.

The product of its digits is 105840, while the sum is 39.

The square root of 23725749 is about 4870.9084368319. The cubic root of 23725749 is about 287.3469844858.

The spelling of 23725749 in words is "twenty-three million, seven hundred twenty-five thousand, seven hundred forty-nine".