47785940 has 12 divisors (see below), whose sum is σ = 100350516. Its totient is φ = 19114368.

The previous prime is 47785919. The next prime is 47785961. The reversal of 47785940 is 4958774.

It is an interprime number because it is at equal distance from previous prime (47785919) and next prime (47785961).

It can be written as a sum of positive squares in 2 ways, for example, as 22905796 + 24880144 = 4786^2 + 4988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47785891 and 47785900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194629 + ... + 1194668.

It is an arithmetic number, because the mean of its divisors is an integer number (8362543).

Almost surely, 2^47785940 is an apocalyptic number.

It is an amenable number.

47785940 is an abundant number, since it is smaller than the sum of its proper divisors (52564576).

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

47785940 is a wasteful number, since it uses less digits than its factorization.

47785940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389306 (or 2389304 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 47785940 is about 6912.7375185233. The cubic root of 47785940 is about 362.8830734416.

The spelling of 47785940 in words is "forty-seven million, seven hundred eighty-five thousand, nine hundred forty".