47028278 has 24 divisors (see below), whose sum is σ = 78537816. Its totient is φ = 20945600.

The previous prime is 47028263. The next prime is 47028323. The reversal of 47028278 is 87282074.

47028278 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 11 ways as a sum of consecutive naturals, for example, 61418 + ... + 62178.

It is an arithmetic number, because the mean of its divisors is an integer number (3272409).

Almost surely, 2^47028278 is an apocalyptic number.

47028278 is a deficient number, since it is larger than the sum of its proper divisors (31509538).

47028278 is a wasteful number, since it uses less digits than its factorization.

47028278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 47028278 is about 6857.7166753957. The cubic root of 47028278 is about 360.9549696622.

The spelling of 47028278 in words is "forty-seven million, twenty-eight thousand, two hundred seventy-eight".