782231 has 2 divisors, whose sum is σ = 782232. Its totient is φ = 782230.

The previous prime is 782219. The next prime is 782251. The reversal of 782231 is 132287.

It is a weak prime.

It is an emirp because it is prime and its reverse (132287) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 782231 - 2¹⁴ = 765847 is a prime.

It is a super-2 number, since 2×782231² = 1223770674722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 782197 and 782206.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 782231.

It is not a weakly prime, because it can be changed into another prime (782251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391115 + 391116.

It is an arithmetic number, because the mean of its divisors is an integer number (391116).

2⁷⁸²²³¹ is an apocalyptic number.

782231 is a deficient number, since it is larger than the sum of its proper divisors (1).

782231 is an equidigital number, since it uses as much as digits as its factorization.

782231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 23.

The square root of 782231 is about 884.4382397884. The cubic root of 782231 is about 92.1393210475.

The spelling of 782231 in words is "seven hundred eighty-two thousand, two hundred thirty-one".