8422605 has 24 divisors (see below), whose sum is σ = 15369120. Its totient is φ = 4255200.

The previous prime is 8422597. The next prime is 8422627. The reversal of 8422605 is 5062248.

It is not a de Polignac number, because 8422605 - 2³ = 8422597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4071 + ... + 5780.

It is an arithmetic number, because the mean of its divisors is an integer number (640380).

Almost surely, 2^8422605 is an apocalyptic number.

It is an amenable number.

8422605 is a deficient number, since it is larger than the sum of its proper divisors (6946515).

8422605 is a wasteful number, since it uses less digits than its factorization.

8422605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9881 (or 9878 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 8422605 is about 2902.1724621394. The cubic root of 8422605 is about 203.4614543845.

The spelling of 8422605 in words is "eight million, four hundred twenty-two thousand, six hundred five".