47486578 has 8 divisors (see below), whose sum is σ = 71285868. Its totient is φ = 23724624.

The previous prime is 47486557. The next prime is 47486581. The reversal of 47486578 is 87568474.

It is a happy number.

47486578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47375689 + 110889 = 6883^2 + 333^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 5901 + ... + 11392.

Almost surely, 2^47486578 is an apocalyptic number.

47486578 is a deficient number, since it is larger than the sum of its proper divisors (23799290).

47486578 is a wasteful number, since it uses less digits than its factorization.

47486578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18668.

The product of its digits is 1505280, while the sum is 49.

The square root of 47486578 is about 6891.0505730259. The cubic root of 47486578 is about 362.1237075040.

The spelling of 47486578 in words is "forty-seven million, four hundred eighty-six thousand, five hundred seventy-eight".