47929808 has 40 divisors (see below), whose sum is σ = 97929000. Its totient is φ = 22690304.

The previous prime is 47929753. The next prime is 47929811. The reversal of 47929808 is 80892974.

It can be written as a sum of positive squares in 4 ways, for example, as 19114384 + 28815424 = 4372^2 + 5368^2 .

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, 23618 + ... + 25566.

It is an arithmetic number, because the mean of its divisors is an integer number (2448225).

Almost surely, 2^47929808 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 47929808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48964500).

47929808 is an abundant number, since it is smaller than the sum of its proper divisors (49999192).

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

47929808 is a wasteful number, since it uses less digits than its factorization.

47929808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 2033 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 47929808 is about 6923.1357057333. The cubic root of 47929808 is about 363.2468830783.

The spelling of 47929808 in words is "forty-seven million, nine hundred twenty-nine thousand, eight hundred eight".