851412 has 12 divisors (see below), whose sum is σ = 1986656. Its totient is φ = 283800.

The previous prime is 851401. The next prime is 851413. The reversal of 851412 is 214158.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 851412.

It is not an unprimeable number, because it can be changed into a prime (851413) by changing a digit.

851412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35464 + ... + 35487.

2⁸⁵¹⁴¹² is an apocalyptic number.

It is an amenable number.

851412 is an abundant number, since it is smaller than the sum of its proper divisors (1135244).

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

851412 is a wasteful number, since it uses less digits than its factorization.

851412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70958 (or 70956 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 851412 is about 922.7198924918. The cubic root of 851412 is about 94.7792473579.

The spelling of 851412 in words is "eight hundred fifty-one thousand, four hundred twelve".