47902770 has 96 divisors (see below), whose sum is σ = 133436160. Its totient is φ = 11880960.

The previous prime is 47902769. The next prime is 47902783. The reversal of 47902770 is 7720974.

47902770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200311 + ... + 200549.

It is an arithmetic number, because the mean of its divisors is an integer number (1389960).

Almost surely, 2^47902770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47902770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66718080).

47902770 is an abundant number, since it is smaller than the sum of its proper divisors (85533390).

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

47902770 is a wasteful number, since it uses less digits than its factorization.

47902770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 47902770 is about 6921.1827023999. The cubic root of 47902770 is about 363.1785656990.

The spelling of 47902770 in words is "forty-seven million, nine hundred two thousand, seven hundred seventy".