47315878 has 16 divisors (see below), whose sum is σ = 73962000. Its totient is φ = 22673952.

The previous prime is 47315843. The next prime is 47315881. The reversal of 47315878 is 87851374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5128 + ... + 10996.

It is an arithmetic number, because the mean of its divisors is an integer number (4622625).

Almost surely, 2^47315878 is an apocalyptic number.

47315878 is a deficient number, since it is larger than the sum of its proper divisors (26646122).

47315878 is a wasteful number, since it uses less digits than its factorization.

47315878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6039.

The product of its digits is 188160, while the sum is 43.

The square root of 47315878 is about 6878.6537927126. The cubic root of 47315878 is about 361.6892778471.

It can be divided in two parts, 4731 and 5878, that added together give a square (10609 = 103²).

The spelling of 47315878 in words is "forty-seven million, three hundred fifteen thousand, eight hundred seventy-eight".