47857893 has 16 divisors (see below), whose sum is σ = 66103296. Its totient is φ = 30766320.

The previous prime is 47857889. The next prime is 47857913. The reversal of 47857893 is 39875874.

It is not a de Polignac number, because 47857893 - 2² = 47857889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47857813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31530 + ... + 33012.

It is an arithmetic number, because the mean of its divisors is an integer number (4131456).

Almost surely, 2^47857893 is an apocalyptic number.

It is an amenable number.

47857893 is a deficient number, since it is larger than the sum of its proper divisors (18245403).

47857893 is a wasteful number, since it uses less digits than its factorization.

47857893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864.

The product of its digits is 1693440, while the sum is 51.

The square root of 47857893 is about 6917.9399390281. The cubic root of 47857893 is about 363.0651174456.

The spelling of 47857893 in words is "forty-seven million, eight hundred fifty-seven thousand, eight hundred ninety-three".