71622 has 24 divisors (see below), whose sum is σ = 162864. Its totient is φ = 22704.

The previous prime is 71597. The next prime is 71633. The reversal of 71622 is 22617.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 71595 and 71604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328 + ... + 500.

It is an arithmetic number, because the mean of its divisors is an integer number (6786).

2⁷¹⁶²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81432).

71622 is an abundant number, since it is smaller than the sum of its proper divisors (91242).

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

71622 is a wasteful number, since it uses less digits than its factorization.

71622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 201 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 71622 is about 267.6228689780. The cubic root of 71622 is about 41.5287457492.

The spelling of 71622 in words is "seventy-one thousand, six hundred twenty-two".