851622 has 8 divisors (see below), whose sum is σ = 1703256. Its totient is φ = 283872.

The previous prime is 851603. The next prime is 851623. The reversal of 851622 is 226158.

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

851622 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 851592 and 851601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851623) by changing a digit.

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, 70963 + ... + 70974.

It is an arithmetic number, because the mean of its divisors is an integer number (212907).

2⁸⁵¹⁶²² is an apocalyptic number.

851622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

851622 is a wasteful number, since it uses less digits than its factorization.

851622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141942.

The product of its digits is 960, while the sum is 24.

The square root of 851622 is about 922.8336794894. The cubic root of 851622 is about 94.7870391225.

The spelling of 851622 in words is "eight hundred fifty-one thousand, six hundred twenty-two".