47279856 has 80 divisors (see below), whose sum is σ = 139303584. Its totient is φ = 13688832.

The previous prime is 47279851. The next prime is 47279857. The reversal of 47279856 is 65897274.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47279851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8380 + ... + 12836.

Almost surely, 2^47279856 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 47279856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69651792).

47279856 is an abundant number, since it is smaller than the sum of its proper divisors (92023728).

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

47279856 is a wasteful number, since it uses less digits than its factorization.

47279856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4498 (or 4492 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 47279856 is about 6876.0349039254. The cubic root of 47279856 is about 361.5974687869.

The spelling of 47279856 in words is "forty-seven million, two hundred seventy-nine thousand, eight hundred fifty-six".