47780986 has 16 divisors (see below), whose sum is σ = 80301600. Its totient is φ = 21131280.

The previous prime is 47780969. The next prime is 47780989. The reversal of 47780986 is 68908774.

47780986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (47780989) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28536 + ... + 30163.

It is an arithmetic number, because the mean of its divisors is an integer number (5018850).

Almost surely, 2^47780986 is an apocalyptic number.

47780986 is a deficient number, since it is larger than the sum of its proper divisors (32520614).

47780986 is a wasteful number, since it uses less digits than its factorization.

47780986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58749.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 47780986 is about 6912.3791852010. The cubic root of 47780986 is about 362.8705328989.

The spelling of 47780986 in words is "forty-seven million, seven hundred eighty thousand, nine hundred eighty-six".