8122905 has 48 divisors (see below), whose sum is σ = 16308864. Its totient is φ = 3663360.

The previous prime is 8122903. The next prime is 8122909. The reversal of 8122905 is 5092218.

It is not a de Polignac number, because 8122905 - 2¹ = 8122903 is a prime.

8122905 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8122903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33585 + ... + 33825.

It is an arithmetic number, because the mean of its divisors is an integer number (339768).

Almost surely, 2^8122905 is an apocalyptic number.

It is an amenable number.

8122905 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

8122905 is a wasteful number, since it uses less digits than its factorization.

8122905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 8122905 is about 2850.0710517459. The cubic root of 8122905 is about 201.0190076329.

The spelling of 8122905 in words is "eight million, one hundred twenty-two thousand, nine hundred five".