47786660 has 24 divisors (see below), whose sum is σ = 106255800. Its totient is φ = 17990144.

The previous prime is 47786659. The next prime is 47786719. The reversal of 47786660 is 6668774.

It can be written as a sum of positive squares in 4 ways, for example, as 2735716 + 45050944 = 1654^2 + 6712^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69935 + ... + 70614.

It is an arithmetic number, because the mean of its divisors is an integer number (4427325).

Almost surely, 2^47786660 is an apocalyptic number.

It is an amenable number.

47786660 is an abundant number, since it is smaller than the sum of its proper divisors (58469140).

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

47786660 is a wasteful number, since it uses less digits than its factorization.

47786660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140575 (or 140573 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 47786660 is about 6912.7895961037. The cubic root of 47786660 is about 362.8848959756.

The spelling of 47786660 in words is "forty-seven million, seven hundred eighty-six thousand, six hundred sixty".