813398 has 4 divisors (see below), whose sum is σ = 1220100. Its totient is φ = 406698.

The previous prime is 813383. The next prime is 813401. The reversal of 813398 is 893318.

813398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

813398 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 as a sum of consecutive naturals, namely, 203348 + ... + 203351.

It is an arithmetic number, because the mean of its divisors is an integer number (305025).

2⁸¹³³⁹⁸ is an apocalyptic number.

813398 is a deficient number, since it is larger than the sum of its proper divisors (406702).

813398 is a wasteful number, since it uses less digits than its factorization.

813398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406701.

The product of its digits is 5184, while the sum is 32.

The square root of 813398 is about 901.8858020836. The cubic root of 813398 is about 93.3471436480.

The spelling of 813398 in words is "eight hundred thirteen thousand, three hundred ninety-eight".