47815956 has 36 divisors (see below), whose sum is σ = 122123092. Its totient is φ = 15773184.

The previous prime is 47815931. The next prime is 47815973. The reversal of 47815956 is 65951874.

47815956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39312900 + 8503056 = 6270^2 + 2916^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3355 + ... + 10338.

Almost surely, 2^47815956 is an apocalyptic number.

It is an amenable number.

47815956 is an abundant number, since it is smaller than the sum of its proper divisors (74307136).

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

47815956 is a wasteful number, since it uses less digits than its factorization.

47815956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13800 (or 13795 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 47815956 is about 6914.9082423413. The cubic root of 47815956 is about 362.9590373375.

It can be divided in two parts, 47 and 815956, that added together give a triangular number (816003 = T₁₂₇₇).

The spelling of 47815956 in words is "forty-seven million, eight hundred fifteen thousand, nine hundred fifty-six".