813379 has 8 divisors (see below), whose sum is σ = 937728. Its totient is φ = 691080.

The previous prime is 813377. The next prime is 813383. The reversal of 813379 is 973318.

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

It is a cyclic number.

It is not a de Polignac number, because 813379 - 2¹ = 813377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 813379.

It is not an unprimeable number, because it can be changed into a prime (813377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474 + ... + 1360.

It is an arithmetic number, because the mean of its divisors is an integer number (117216).

2⁸¹³³⁷⁹ is an apocalyptic number.

813379 is a deficient number, since it is larger than the sum of its proper divisors (124349).

813379 is a wasteful number, since it uses less digits than its factorization.

813379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025.

The product of its digits is 4536, while the sum is 31.

The square root of 813379 is about 901.8752685377. The cubic root of 813379 is about 93.3464168167.

The spelling of 813379 in words is "eight hundred thirteen thousand, three hundred seventy-nine".