15680704 has 56 divisors (see below), whose sum is σ = 34308288. Its totient is φ = 7065600.

The previous prime is 15680701. The next prime is 15680713. The reversal of 15680704 is 40708651.

It is not an unprimeable number, because it can be changed into a prime (15680701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38904 + ... + 39304.

It is an arithmetic number, because the mean of its divisors is an integer number (612648).

Almost surely, 2^15680704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15680704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17154144).

15680704 is an abundant number, since it is smaller than the sum of its proper divisors (18627584).

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

15680704 is a wasteful number, since it uses less digits than its factorization.

15680704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 15680704 is about 3959.8868670708. The cubic root of 15680704 is about 250.2967356525.

It can be divided in two parts, 15680 and 704, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 15680704 in words is "fifteen million, six hundred eighty thousand, seven hundred four".