15680693 has 8 divisors (see below), whose sum is σ = 17987712. Its totient is φ = 13390416.

The previous prime is 15680683. The next prime is 15680701. The reversal of 15680693 is 39608651.

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 15680693 - 2⁶ = 15680629 is a prime.

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 (15680653) 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, 2105 + ... + 5982.

It is an arithmetic number, because the mean of its divisors is an integer number (2248464).

Almost surely, 2^15680693 is an apocalyptic number.

It is an amenable number.

15680693 is a deficient number, since it is larger than the sum of its proper divisors (2307019).

15680693 is an equidigital number, since it uses as much as digits as its factorization.

15680693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8371.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 15680693 is about 3959.8854781420. The cubic root of 15680693 is about 250.2966771248.

The spelling of 15680693 in words is "fifteen million, six hundred eighty thousand, six hundred ninety-three".