23640715 has 8 divisors (see below), whose sum is σ = 32421600. Its totient is φ = 16210752.

The previous prime is 23640691. The next prime is 23640737. The reversal of 23640715 is 51704632.

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

It is a cyclic number.

It is not a de Polignac number, because 23640715 - 2⁹ = 23640203 is a prime.

It is a super-2 number, since 2×23640715² = 1117766811422450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337690 + ... + 337759.

It is an arithmetic number, because the mean of its divisors is an integer number (4052700).

Almost surely, 2^23640715 is an apocalyptic number.

23640715 is a deficient number, since it is larger than the sum of its proper divisors (8780885).

23640715 is an equidigital number, since it uses as much as digits as its factorization.

23640715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675461.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 23640715 is about 4862.1718398263. The cubic root of 23640715 is about 287.0032859883.

The spelling of 23640715 in words is "twenty-three million, six hundred forty thousand, seven hundred fifteen".