477791 has 2 divisors, whose sum is σ = 477792. Its totient is φ = 477790.

The previous prime is 477769. The next prime is 477797. The reversal of 477791 is 197774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 477791 - 2⁶ = 477727 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238895 + 238896.

It is an arithmetic number, because the mean of its divisors is an integer number (238896).

2⁴⁷⁷⁷⁹¹ is an apocalyptic number.

477791 is a deficient number, since it is larger than the sum of its proper divisors (1).

477791 is an equidigital number, since it uses as much as digits as its factorization.

477791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12348, while the sum is 35.

The square root of 477791 is about 691.2242761941. The cubic root of 477791 is about 78.1770577841.

The spelling of 477791 in words is "four hundred seventy-seven thousand, seven hundred ninety-one".