47903856 has 160 divisors (see below), whose sum is σ = 166322688. Its totient is φ = 11473920.

The previous prime is 47903839. The next prime is 47903879. The reversal of 47903856 is 65830974.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47550 + ... + 48546.

Almost surely, 2^47903856 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 47903856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83161344).

47903856 is an abundant number, since it is smaller than the sum of its proper divisors (118418832).

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

47903856 is a wasteful number, since it uses less digits than its factorization.

47903856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 47903856 is about 6921.2611567546. The cubic root of 47903856 is about 363.1813102093.

It can be divided in two parts, 4790 and 3856, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 47903856 in words is "forty-seven million, nine hundred three thousand, eight hundred fifty-six".