813546 has 12 divisors (see below), whose sum is σ = 1762722. Its totient is φ = 271176.

The previous prime is 813541. The next prime is 813559. The reversal of 813546 is 645318.

It can be written as a sum of positive squares in only one way, i.e., 505521 + 308025 = 711^2 + 555^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 813546.

It is not an unprimeable number, because it can be changed into a prime (813541) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 22581 + ... + 22616.

2⁸¹³⁵⁴⁶ is an apocalyptic number.

813546 is an abundant number, since it is smaller than the sum of its proper divisors (949176).

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

813546 is a wasteful number, since it uses less digits than its factorization.

813546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45205 (or 45202 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 813546 is about 901.9678486509. The cubic root of 813546 is about 93.3528048944.

The spelling of 813546 in words is "eight hundred thirteen thousand, five hundred forty-six".