47857894 has 16 divisors (see below), whose sum is σ = 85609728. Its totient is φ = 19618632.

The previous prime is 47857889. The next prime is 47857913. The reversal of 47857894 is 49875874.

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, 73992 + ... + 74635.

It is an arithmetic number, because the mean of its divisors is an integer number (5350608).

Almost surely, 2^47857894 is an apocalyptic number.

47857894 is a deficient number, since it is larger than the sum of its proper divisors (37751834).

47857894 is a wasteful number, since it uses less digits than its factorization.

47857894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148659.

The product of its digits is 2257920, while the sum is 52.

The square root of 47857894 is about 6917.9400113039. The cubic root of 47857894 is about 363.0651199743.

The spelling of 47857894 in words is "forty-seven million, eight hundred fifty-seven thousand, eight hundred ninety-four".