47135856 has 40 divisors (see below), whose sum is σ = 122273424. Its totient is φ = 15646720.

The previous prime is 47135831. The next prime is 47135861. The reversal of 47135856 is 65853174.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 10426 + ... + 14246.

Almost surely, 2^47135856 is an apocalyptic number.

It is an amenable number.

47135856 is an abundant number, since it is smaller than the sum of its proper divisors (75137568).

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

47135856 is a wasteful number, since it uses less digits than its factorization.

47135856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089 (or 4083 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 47135856 is about 6865.5557677438. Note that the first 3 decimals coincide. The cubic root of 47135856 is about 361.2299903110.

The spelling of 47135856 in words is "forty-seven million, one hundred thirty-five thousand, eight hundred fifty-six".