47278994 has 16 divisors (see below), whose sum is σ = 81478656. Its totient is φ = 20155200.

The previous prime is 47278967. The next prime is 47279033. The reversal of 47278994 is 49987274.

47278994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 6167 + ... + 11514.

It is an arithmetic number, because the mean of its divisors is an integer number (5092416).

Almost surely, 2^47278994 is an apocalyptic number.

47278994 is a deficient number, since it is larger than the sum of its proper divisors (34199662).

47278994 is a wasteful number, since it uses less digits than its factorization.

47278994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17881.

The product of its digits is 1016064, while the sum is 50.

The square root of 47278994 is about 6875.9722221661. The cubic root of 47278994 is about 361.5952712414.

The spelling of 47278994 in words is "forty-seven million, two hundred seventy-eight thousand, nine hundred ninety-four".