813473 has 4 divisors (see below), whose sum is σ = 815280. Its totient is φ = 811668.

The previous prime is 813443. The next prime is 813493. The reversal of 813473 is 374318.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 813473 - 2⁸ = 813217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386 + ... + 1332.

It is an arithmetic number, because the mean of its divisors is an integer number (203820).

2⁸¹³⁴⁷³ is an apocalyptic number.

It is an amenable number.

813473 is a deficient number, since it is larger than the sum of its proper divisors (1807).

813473 is an equidigital number, since it uses as much as digits as its factorization.

813473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806.

The product of its digits is 2016, while the sum is 26.

The square root of 813473 is about 901.9273806688. The cubic root of 813473 is about 93.3500126087.

The spelling of 813473 in words is "eight hundred thirteen thousand, four hundred seventy-three".