813078 has 48 divisors (see below), whose sum is σ = 2096640. Its totient is φ = 231336.

The previous prime is 813061. The next prime is 813083. The reversal of 813078 is 870318.

It is a super-2 number, since 2×813078² = 1322191668168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3283 + ... + 3521.

It is an arithmetic number, because the mean of its divisors is an integer number (43680).

2⁸¹³⁰⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 813078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048320).

813078 is an abundant number, since it is smaller than the sum of its proper divisors (1283562).

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

813078 is a wasteful number, since it uses less digits than its factorization.

813078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 813078 is about 901.7083785792. The cubic root of 813078 is about 93.3349007673.

The spelling of 813078 in words is "eight hundred thirteen thousand, seventy-eight".