15855896 has 32 divisors (see below), whose sum is σ = 34560000. Its totient is φ = 6678816.

The previous prime is 15855887. The next prime is 15855929. The reversal of 15855896 is 69855851.

15855896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 15855896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905 + ... + 5703.

It is an arithmetic number, because the mean of its divisors is an integer number (1080000).

Almost surely, 2^15855896 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 15855896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17280000).

15855896 is an abundant number, since it is smaller than the sum of its proper divisors (18704104).

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

15855896 is a wasteful number, since it uses less digits than its factorization.

15855896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871 (or 4867 counting only the distinct ones).

The product of its digits is 432000, while the sum is 47.

The square root of 15855896 is about 3981.9462577991. The cubic root of 15855896 is about 251.2254288158.

The spelling of 15855896 in words is "fifteen million, eight hundred fifty-five thousand, eight hundred ninety-six".