47315838 has 8 divisors (see below), whose sum is σ = 94631688. Its totient is φ = 15771944.

The previous prime is 47315837. The next prime is 47315843. The reversal of 47315838 is 83851374.

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

47315838 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 47315796 and 47315805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47315837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3942981 + ... + 3942992.

It is an arithmetic number, because the mean of its divisors is an integer number (11828961).

Almost surely, 2^47315838 is an apocalyptic number.

47315838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47315838 is a wasteful number, since it uses less digits than its factorization.

47315838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7885978.

The product of its digits is 80640, while the sum is 39.

The square root of 47315838 is about 6878.6508851664. The cubic root of 47315838 is about 361.6891759252.

The spelling of 47315838 in words is "forty-seven million, three hundred fifteen thousand, eight hundred thirty-eight".