47838678 has 16 divisors (see below), whose sum is σ = 95786496. Its totient is φ = 15928040.

The previous prime is 47838667. The next prime is 47838709. The reversal of 47838678 is 87683874.

It is a super-2 number, since 2×47838678² = 4577078225575368, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47838678.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843 + ... + 9953.

It is an arithmetic number, because the mean of its divisors is an integer number (5986656).

Almost surely, 2^47838678 is an apocalyptic number.

47838678 is an abundant number, since it is smaller than the sum of its proper divisors (47947818).

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

47838678 is a wasteful number, since it uses less digits than its factorization.

47838678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9099.

The product of its digits is 1806336, while the sum is 51.

The square root of 47838678 is about 6916.5510191135. The cubic root of 47838678 is about 363.0165205847.

It can be divided in two parts, 47838 and 678, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 47838678 in words is "forty-seven million, eight hundred thirty-eight thousand, six hundred seventy-eight".