831461 has 2 divisors, whose sum is σ = 831462. Its totient is φ = 831460.

The previous prime is 831443. The next prime is 831503. The reversal of 831461 is 164138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 591361 + 240100 = 769^2 + 490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-831461 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 (831431) 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 as a sum of consecutive naturals, namely, 415730 + 415731.

It is an arithmetic number, because the mean of its divisors is an integer number (415731).

2⁸³¹⁴⁶¹ is an apocalyptic number.

It is an amenable number.

831461 is a deficient number, since it is larger than the sum of its proper divisors (1).

831461 is an equidigital number, since it uses as much as digits as its factorization.

831461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 831461 is about 911.8448332913. The cubic root of 831461 is about 94.0330727143.

Adding to 831461 its reverse (164138), we get a palindrome (995599).

The spelling of 831461 in words is "eight hundred thirty-one thousand, four hundred sixty-one".