485831 has 2 divisors, whose sum is σ = 485832. Its totient is φ = 485830.

The previous prime is 485827. The next prime is 485833. The reversal of 485831 is 138584.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 485831 - 2² = 485827 is a prime.

It is a super-3 number, since 3×485831³ = 344014638795333573, which contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 485833, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 485794 and 485803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242915 + 242916.

It is an arithmetic number, because the mean of its divisors is an integer number (242916).

2⁴⁸⁵⁸³¹ is an apocalyptic number.

485831 is a deficient number, since it is larger than the sum of its proper divisors (1).

485831 is an equidigital number, since it uses as much as digits as its factorization.

485831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 29.

The square root of 485831 is about 697.0157817439. The cubic root of 485831 is about 78.6131274920.

It can be divided in two parts, 48583 and 1, that added together give a palindrome (48584).

The spelling of 485831 in words is "four hundred eighty-five thousand, eight hundred thirty-one".