47878656 has 160 divisors (see below), whose sum is σ = 150192768. Its totient is φ = 13271040.

The previous prime is 47878639. The next prime is 47878667. The reversal of 47878656 is 65687874.

It is a junction number, because it is equal to n+sod(n) for n = 47878599 and 47878608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655836 + ... + 655908.

Almost surely, 2^47878656 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 47878656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75096384).

47878656 is an abundant number, since it is smaller than the sum of its proper divisors (102314112).

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

47878656 is an equidigital number, since it uses as much as digits as its factorization.

47878656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 146 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The square root of 47878656 is about 6919.4404398044. The cubic root of 47878656 is about 363.1176147500.

The spelling of 47878656 in words is "forty-seven million, eight hundred seventy-eight thousand, six hundred fifty-six".