47631386 has 8 divisors (see below), whose sum is σ = 77942304. Its totient is φ = 21650620.

The previous prime is 47631377. The next prime is 47631403. The reversal of 47631386 is 68313674.

47631386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 1082510 + ... + 1082553.

It is an arithmetic number, because the mean of its divisors is an integer number (9742788).

Almost surely, 2^47631386 is an apocalyptic number.

47631386 is a deficient number, since it is larger than the sum of its proper divisors (30310918).

47631386 is a wasteful number, since it uses less digits than its factorization.

47631386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165076.

The product of its digits is 72576, while the sum is 38.

The square root of 47631386 is about 6901.5495361549. The cubic root of 47631386 is about 362.4914268286.

The spelling of 47631386 in words is "forty-seven million, six hundred thirty-one thousand, three hundred eighty-six".