47708420 has 48 divisors (see below), whose sum is σ = 104167728. Its totient is φ = 18339840.

The previous prime is 47708413. The next prime is 47708447. The reversal of 47708420 is 2480774.

It can be written as a sum of positive squares in 8 ways, for example, as 4910656 + 42797764 = 2216^2 + 6542^2 .

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, 59462 + ... + 60258.

It is an arithmetic number, because the mean of its divisors is an integer number (2170161).

Almost surely, 2^47708420 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 47708420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52083864).

47708420 is an abundant number, since it is smaller than the sum of its proper divisors (56459308).

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

47708420 is a wasteful number, since it uses less digits than its factorization.

47708420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 47708420 is about 6907.1282020823. The cubic root of 47708420 is about 362.6867400912.

The spelling of 47708420 in words is "forty-seven million, seven hundred eight thousand, four hundred twenty".