812386284 has 12 divisors (see below), whose sum is σ = 1895568024. Its totient is φ = 270795424.

The previous prime is 812386277. The next prime is 812386291. The reversal of 812386284 is 482683218.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (812386277) and next prime (812386291).

It is a tau number, because it is divible by the number of its divisors (12).

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, 33849417 + ... + 33849440.

It is an arithmetic number, because the mean of its divisors is an integer number (157964002).

Almost surely, 2^812386284 is an apocalyptic number.

It is an amenable number.

812386284 is an abundant number, since it is smaller than the sum of its proper divisors (1083181740).

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

812386284 is a wasteful number, since it uses less digits than its factorization.

812386284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67698864 (or 67698862 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 812386284 is about 28502.3908470851. The cubic root of 812386284 is about 933.0842542257.

The spelling of 812386284 in words is "eight hundred twelve million, three hundred eighty-six thousand, two hundred eighty-four".