871622 has 8 divisors (see below), whose sum is σ = 1319976. Its totient is φ = 431632.

The previous prime is 871621. The next prime is 871639. The reversal of 871622 is 226178.

871622 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 junction number, because it is equal to n+sod(n) for n = 871591 and 871600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1823 + ... + 2250.

It is an arithmetic number, because the mean of its divisors is an integer number (164997).

2⁸⁷¹⁶²² is an apocalyptic number.

871622 is a deficient number, since it is larger than the sum of its proper divisors (448354).

871622 is a wasteful number, since it uses less digits than its factorization.

871622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182.

The product of its digits is 1344, while the sum is 26.

The square root of 871622 is about 933.6069836928. The cubic root of 871622 is about 95.5233169494.

The spelling of 871622 in words is "eight hundred seventy-one thousand, six hundred twenty-two".