47520820 has 24 divisors (see below), whose sum is σ = 100999584. Its totient is φ = 18778656.

The previous prime is 47520793. The next prime is 47520827. The reversal of 47520820 is 2802574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47520827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12654 + ... + 15973.

It is an arithmetic number, because the mean of its divisors is an integer number (4208316).

Almost surely, 2^47520820 is an apocalyptic number.

It is an amenable number.

47520820 is an abundant number, since it is smaller than the sum of its proper divisors (53478764).

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

47520820 is a wasteful number, since it uses less digits than its factorization.

47520820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28719 (or 28717 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 47520820 is about 6893.5346521215. The cubic root of 47520820 is about 362.2107276070.

The spelling of 47520820 in words is "forty-seven million, five hundred twenty thousand, eight hundred twenty".