813378 has 16 divisors (see below), whose sum is σ = 1679616. Its totient is φ = 262320.

The previous prime is 813377. The next prime is 813383. The reversal of 813378 is 873318.

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, 2001 + ... + 2372.

It is an arithmetic number, because the mean of its divisors is an integer number (104976).

2⁸¹³³⁷⁸ is an apocalyptic number.

813378 is an abundant number, since it is smaller than the sum of its proper divisors (866238).

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

813378 is a wasteful number, since it uses less digits than its factorization.

813378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409.

The product of its digits is 4032, while the sum is 30.

The square root of 813378 is about 901.8747141372. The cubic root of 813378 is about 93.3463785621.

The spelling of 813378 in words is "eight hundred thirteen thousand, three hundred seventy-eight".