47812908 has 144 divisors (see below), whose sum is σ = 140767200. Its totient is φ = 12503040.

The previous prime is 47812907. The next prime is 47812931. The reversal of 47812908 is 80921874.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (47812901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 320818 + ... + 320966.

It is an arithmetic number, because the mean of its divisors is an integer number (977550).

Almost surely, 2^47812908 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 47812908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70383600).

47812908 is an abundant number, since it is smaller than the sum of its proper divisors (92954292).

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

47812908 is a wasteful number, since it uses less digits than its factorization.

47812908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 47812908 is about 6914.6878454490. The cubic root of 47812908 is about 362.9513249702.

The spelling of 47812908 in words is "forty-seven million, eight hundred twelve thousand, nine hundred eight".