23387825 has 6 divisors (see below), whose sum is σ = 29000934. Its totient is φ = 18710240.

The previous prime is 23387821. The next prime is 23387867. The reversal of 23387825 is 52878332.

It can be written as a sum of positive squares in 3 ways, for example, as 39601 + 23348224 = 199^2 + 4832^2 .

It is not a de Polignac number, because 23387825 - 2² = 23387821 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (23387821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 467732 + ... + 467781.

It is an arithmetic number, because the mean of its divisors is an integer number (4833489).

Almost surely, 2^23387825 is an apocalyptic number.

23387825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23387825 is a deficient number, since it is larger than the sum of its proper divisors (5613109).

23387825 is an equidigital number, since it uses as much as digits as its factorization.

23387825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935523 (or 935518 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 23387825 is about 4836.0960495011. The cubic root of 23387825 is about 285.9762356573.

The spelling of 23387825 in words is "twenty-three million, three hundred eighty-seven thousand, eight hundred twenty-five".