813434 has 4 divisors (see below), whose sum is σ = 1220154. Its totient is φ = 406716.

The previous prime is 813427. The next prime is 813443. The reversal of 813434 is 434318.

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., 494209 + 319225 = 703^2 + 565^2 .

It is an unprimeable number.

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, 203357 + ... + 203360.

2⁸¹³⁴³⁴ is an apocalyptic number.

813434 is a deficient number, since it is larger than the sum of its proper divisors (406720).

813434 is a wasteful number, since it uses less digits than its factorization.

813434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406719.

The product of its digits is 1152, while the sum is 23.

The square root of 813434 is about 901.9057600437. The cubic root of 813434 is about 93.3485207712.

The spelling of 813434 in words is "eight hundred thirteen thousand, four hundred thirty-four".