843253 has 2 divisors, whose sum is σ = 843254. Its totient is φ = 843252.

The previous prime is 843229. The next prime is 843257. The reversal of 843253 is 352348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 842724 + 529 = 918^2 + 23^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-843253 is a prime.

It is a super-2 number, since 2×843253² = 1422151244018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (843257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421626 + 421627.

It is an arithmetic number, because the mean of its divisors is an integer number (421627).

2⁸⁴³²⁵³ is an apocalyptic number.

It is an amenable number.

843253 is a deficient number, since it is larger than the sum of its proper divisors (1).

843253 is an equidigital number, since it uses as much as digits as its factorization.

843253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 843253 is about 918.2880811597. The cubic root of 843253 is about 94.4755215940.

The spelling of 843253 in words is "eight hundred forty-three thousand, two hundred fifty-three".