813534 has 8 divisors (see below), whose sum is σ = 1627080. Its totient is φ = 271176.

The previous prime is 813529. The next prime is 813541. The reversal of 813534 is 435318.

It is a sphenic number, since it is the product of 3 distinct primes.

813534 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

813534 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67789 + ... + 67800.

It is an arithmetic number, because the mean of its divisors is an integer number (203385).

2⁸¹³⁵³⁴ is an apocalyptic number.

813534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

813534 is a wasteful number, since it uses less digits than its factorization.

813534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135594.

The product of its digits is 1440, while the sum is 24.

The square root of 813534 is about 901.9611965046. The cubic root of 813534 is about 93.3523459000.

The spelling of 813534 in words is "eight hundred thirteen thousand, five hundred thirty-four".