15963696 has 80 divisors (see below), whose sum is σ = 52377600. Its totient is φ = 4560192.

The previous prime is 15963643. The next prime is 15963709. The reversal of 15963696 is 69636951.

15963696 is a `hidden beast` number, since 1 + 5 + 9 + 636 + 9 + 6 = 666.

15963696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385 + ... + 5663.

It is an arithmetic number, because the mean of its divisors is an integer number (654720).

Almost surely, 2^15963696 is an apocalyptic number.

15963696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15963696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26188800).

15963696 is an abundant number, since it is smaller than the sum of its proper divisors (36413904).

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

15963696 is a wasteful number, since it uses less digits than its factorization.

15963696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5303 (or 5291 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 15963696 is about 3995.4594228949. The cubic root of 15963696 is about 251.7934815944.

The spelling of 15963696 in words is "fifteen million, nine hundred sixty-three thousand, six hundred ninety-six".