47720850 has 48 divisors (see below), whose sum is σ = 119804832. Its totient is φ = 12568960.

The previous prime is 47720809. The next prime is 47720851. The reversal of 47720850 is 5802774.

It is not an unprimeable number, because it can be changed into a prime (47720851) 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 23 ways as a sum of consecutive naturals, for example, 10534 + ... + 14366.

It is an arithmetic number, because the mean of its divisors is an integer number (2495934).

Almost surely, 2^47720850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47720850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59902416).

47720850 is an abundant number, since it is smaller than the sum of its proper divisors (72083982).

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

47720850 is a wasteful number, since it uses less digits than its factorization.

47720850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931 (or 3926 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 47720850 is about 6908.0279385654. The cubic root of 47720850 is about 362.7182356128.

The spelling of 47720850 in words is "forty-seven million, seven hundred twenty thousand, eight hundred fifty".