23646425 has 18 divisors (see below), whose sum is σ = 32233614. Its totient is φ = 17195200.

The previous prime is 23646407. The next prime is 23646457. The reversal of 23646425 is 52464632.

It can be written as a sum of positive squares in 3 ways, for example, as 327184 + 23319241 = 572^2 + 4829^2 .

It is not a de Polignac number, because 23646425 - 2⁶ = 23646361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23646391 and 23646400.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 884 + ... + 6933.

Almost surely, 2^23646425 is an apocalyptic number.

23646425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23646425 is a deficient number, since it is larger than the sum of its proper divisors (8587189).

23646425 is a wasteful number, since it uses less digits than its factorization.

23646425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849 (or 7833 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

The square root of 23646425 is about 4862.7589905320. The cubic root of 23646425 is about 287.0263909979.

The spelling of 23646425 in words is "twenty-three million, six hundred forty-six thousand, four hundred twenty-five".