15799956 has 24 divisors (see below), whose sum is σ = 38056704. Its totient is φ = 5096640.

The previous prime is 15799933. The next prime is 15799957. The reversal of 15799956 is 65999751.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15799899 and 15799908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15799957) 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, 20865 + ... + 21608.

It is an arithmetic number, because the mean of its divisors is an integer number (1585696).

Almost surely, 2^15799956 is an apocalyptic number.

It is an amenable number.

15799956 is an abundant number, since it is smaller than the sum of its proper divisors (22256748).

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

15799956 is a wasteful number, since it uses less digits than its factorization.

15799956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42511 (or 42509 counting only the distinct ones).

The product of its digits is 765450, while the sum is 51.

The square root of 15799956 is about 3974.9158481658. The cubic root of 15799956 is about 250.9296374784.

The spelling of 15799956 in words is "fifteen million, seven hundred ninety-nine thousand, nine hundred fifty-six".