23540709 has 8 divisors (see below), whose sum is σ = 31766112. Its totient is φ = 15504560.

The previous prime is 23540681. The next prime is 23540711. The reversal of 23540709 is 90704532.

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 23540709 - 2⁹ = 23540197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23540729) 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, 47022 + ... + 47519.

It is an arithmetic number, because the mean of its divisors is an integer number (3970764).

Almost surely, 2^23540709 is an apocalyptic number.

It is an amenable number.

23540709 is a deficient number, since it is larger than the sum of its proper divisors (8225403).

23540709 is an equidigital number, since it uses as much as digits as its factorization.

23540709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94627.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 23540709 is about 4851.8768533424. The cubic root of 23540709 is about 286.5980159808.

The spelling of 23540709 in words is "twenty-three million, five hundred forty thousand, seven hundred nine".