47837790 has 320 divisors, whose sum is σ = 175633920. Its totient is φ = 9020160.

The previous prime is 47837773. The next prime is 47837821. The reversal of 47837790 is 9773874.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 810781 + ... + 810839.

It is an arithmetic number, because the mean of its divisors is an integer number (548856).

Almost surely, 2^47837790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47837790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87816960).

47837790 is an abundant number, since it is smaller than the sum of its proper divisors (127796130).

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

47837790 is a wasteful number, since it uses less digits than its factorization.

47837790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 47837790 is about 6916.4868249712. The cubic root of 47837790 is about 363.0142744199.

The spelling of 47837790 in words is "forty-seven million, eight hundred thirty-seven thousand, seven hundred ninety".