812378 has 8 divisors (see below), whose sum is σ = 1392672. Its totient is φ = 348156.

The previous prime is 812363. The next prime is 812381. The reversal of 812378 is 873218.

812378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 812378.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29000 + ... + 29027.

It is an arithmetic number, because the mean of its divisors is an integer number (174084).

2⁸¹²³⁷⁸ is an apocalyptic number.

812378 is a deficient number, since it is larger than the sum of its proper divisors (580294).

812378 is a wasteful number, since it uses less digits than its factorization.

812378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58036.

The product of its digits is 2688, while the sum is 29.

The square root of 812378 is about 901.3201429015. The cubic root of 812378 is about 93.3081082624.

It can be divided in two parts, 812 and 378, that multiplied together give a triangular number (306936 = T₇₈₃).

The spelling of 812378 in words is "eight hundred twelve thousand, three hundred seventy-eight".