47859791 has 4 divisors (see below), whose sum is σ = 54696912. Its totient is φ = 41022672.

The previous prime is 47859787. The next prime is 47859809. The reversal of 47859791 is 19795874.

47859791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47859791 - 2² = 47859787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47859761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3418550 + ... + 3418563.

It is an arithmetic number, because the mean of its divisors is an integer number (13674228).

Almost surely, 2^47859791 is an apocalyptic number.

47859791 is a deficient number, since it is larger than the sum of its proper divisors (6837121).

47859791 is an equidigital number, since it uses as much as digits as its factorization.

47859791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6837120.

The product of its digits is 635040, while the sum is 50.

The square root of 47859791 is about 6918.0771172342. The cubic root of 47859791 is about 363.0699169916.

The spelling of 47859791 in words is "forty-seven million, eight hundred fifty-nine thousand, seven hundred ninety-one".