843434 has 4 divisors (see below), whose sum is σ = 1265154. Its totient is φ = 421716.

The previous prime is 843397. The next prime is 843443. The reversal of 843434 is 434348.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 717409 + 126025 = 847^2 + 355^2 .

It is a super-2 number, since 2×843434² = 1422761824712, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 843434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210857 + ... + 210860.

2⁸⁴³⁴³⁴ is an apocalyptic number.

843434 is a deficient number, since it is larger than the sum of its proper divisors (421720).

843434 is a wasteful number, since it uses less digits than its factorization.

843434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421719.

The product of its digits is 4608, while the sum is 26.

The square root of 843434 is about 918.3866288225. The cubic root of 843434 is about 94.4822806750.

The spelling of 843434 in words is "eight hundred forty-three thousand, four hundred thirty-four".