47315805 has 8 divisors (see below), whose sum is σ = 75705312. Its totient is φ = 25235088.

The previous prime is 47315789. The next prime is 47315819. The reversal of 47315805 is 50851374.

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

It is not a de Polignac number, because 47315805 - 2⁴ = 47315789 is a prime.

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, 1577179 + ... + 1577208.

It is an arithmetic number, because the mean of its divisors is an integer number (9463164).

Almost surely, 2^47315805 is an apocalyptic number.

It is an amenable number.

47315805 is a deficient number, since it is larger than the sum of its proper divisors (28389507).

47315805 is a wasteful number, since it uses less digits than its factorization.

47315805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154395.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 47315805 is about 6878.6484864398. The cubic root of 47315805 is about 361.6890918396.

The spelling of 47315805 in words is "forty-seven million, three hundred fifteen thousand, eight hundred five".