8161622 has 8 divisors (see below), whose sum is σ = 13991376. Its totient is φ = 3497832.

The previous prime is 8161607. The next prime is 8161627. The reversal of 8161622 is 2261618.

8161622 is digitally balanced in base 8, 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 super-2 number, since 2×8161622² = 133224147341768, which contains 22 as substring.

8161622 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 8161591 and 8161600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8161627) 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, 291473 + ... + 291500.

It is an arithmetic number, because the mean of its divisors is an integer number (1748922).

Almost surely, 2^8161622 is an apocalyptic number.

8161622 is a deficient number, since it is larger than the sum of its proper divisors (5829754).

8161622 is a wasteful number, since it uses less digits than its factorization.

8161622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582982.

The product of its digits is 1152, while the sum is 26.

The square root of 8161622 is about 2856.8552640972. The cubic root of 8161622 is about 201.3378804240.

The spelling of 8161622 in words is "eight million, one hundred sixty-one thousand, six hundred twenty-two".