47195820 has 108 divisors (see below), whose sum is σ = 166564944. Its totient is φ = 10785600.

The previous prime is 47195807. The next prime is 47195821. The reversal of 47195820 is 2859174.

47195820 is a `hidden beast` number, since 4 + 71 + 9 + 582 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (47195821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6145 + ... + 11495.

It is an arithmetic number, because the mean of its divisors is an integer number (1542268).

Almost surely, 2^47195820 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 47195820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83282472).

47195820 is an abundant number, since it is smaller than the sum of its proper divisors (119369124).

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

47195820 is a wasteful number, since it uses less digits than its factorization.

47195820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5380 (or 5368 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 47195820 is about 6869.9213969302. The cubic root of 47195820 is about 361.3831052868.

The spelling of 47195820 in words is "forty-seven million, one hundred ninety-five thousand, eight hundred twenty".