812894 has 4 divisors (see below), whose sum is σ = 1219344. Its totient is φ = 406446.

The previous prime is 812869. The next prime is 812921. The reversal of 812894 is 498218.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 812894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203222 + ... + 203225.

It is an arithmetic number, because the mean of its divisors is an integer number (304836).

2⁸¹²⁸⁹⁴ is an apocalyptic number.

812894 is a deficient number, since it is larger than the sum of its proper divisors (406450).

812894 is a wasteful number, since it uses less digits than its factorization.

812894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406449.

The product of its digits is 4608, while the sum is 32.

The square root of 812894 is about 901.6063442545. The cubic root of 812894 is about 93.3278596563.

The spelling of 812894 in words is "eight hundred twelve thousand, eight hundred ninety-four".