485731 has 2 divisors, whose sum is σ = 485732. Its totient is φ = 485730.

The previous prime is 485729. The next prime is 485753. The reversal of 485731 is 137584.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 485731 - 2¹ = 485729 is a prime.

It is a super-2 number, since 2×485731² = 471869208722, which contains 22 as substring.

Together with 485729, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 485731.

It is not a weakly prime, because it can be changed into another prime (485701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242865 + 242866.

It is an arithmetic number, because the mean of its divisors is an integer number (242866).

2⁴⁸⁵⁷³¹ is an apocalyptic number.

485731 is a deficient number, since it is larger than the sum of its proper divisors (1).

485731 is an equidigital number, since it uses as much as digits as its factorization.

485731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 485731 is about 696.9440436649. The cubic root of 485731 is about 78.6077333995.

The spelling of 485731 in words is "four hundred eighty-five thousand, seven hundred thirty-one".