47978038 has 16 divisors (see below), whose sum is σ = 73646496. Its totient is φ = 23433280.

The previous prime is 47978017. The next prime is 47978057. The reversal of 47978038 is 83087974.

47978038 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 7 ways as a sum of consecutive naturals, for example, 27018 + ... + 28738.

It is an arithmetic number, because the mean of its divisors is an integer number (4602906).

Almost surely, 2^47978038 is an apocalyptic number.

47978038 is a deficient number, since it is larger than the sum of its proper divisors (25668458).

47978038 is a wasteful number, since it uses less digits than its factorization.

47978038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 47978038 is about 6926.6180781100. The cubic root of 47978038 is about 363.3686828852.

The spelling of 47978038 in words is "forty-seven million, nine hundred seventy-eight thousand, thirty-eight".