15680682 has 16 divisors (see below), whose sum is σ = 34846080. Its totient is φ = 5226876.

The previous prime is 15680653. The next prime is 15680683. The reversal of 15680682 is 28608651.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (15680683) by changing a digit.

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, 145138 + ... + 145245.

It is an arithmetic number, because the mean of its divisors is an integer number (2177880).

Almost surely, 2^15680682 is an apocalyptic number.

15680682 is an abundant number, since it is smaller than the sum of its proper divisors (19165398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15680682 is a wasteful number, since it uses less digits than its factorization.

15680682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290394 (or 290388 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 15680682 is about 3959.8840892127. The cubic root of 15680682 is about 250.2966185971.

The spelling of 15680682 in words is "fifteen million, six hundred eighty thousand, six hundred eighty-two".