477891 has 12 divisors (see below), whose sum is σ = 714480. Its totient is φ = 307440.

The previous prime is 477881. The next prime is 477899. The reversal of 477891 is 198774.

It is not a de Polignac number, because 477891 - 2¹⁴ = 461507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (477899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 655 + ... + 1176.

It is an arithmetic number, because the mean of its divisors is an integer number (59540).

2⁴⁷⁷⁸⁹¹ is an apocalyptic number.

477891 is a deficient number, since it is larger than the sum of its proper divisors (236589).

477891 is a wasteful number, since it uses less digits than its factorization.

477891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866 (or 1863 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 477891 is about 691.2966078320. The cubic root of 477891 is about 78.1825114661.

The spelling of 477891 in words is "four hundred seventy-seven thousand, eight hundred ninety-one".