7945605 has 24 divisors (see below), whose sum is σ = 13840632. Its totient is φ = 4216704.

The previous prime is 7945573. The next prime is 7945621. The reversal of 7945605 is 5065497.

7945605 is a `hidden beast` number, since 7 + 9 + 45 + 605 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 294849 + 7650756 = 543^2 + 2766^2 .

It is not a de Polignac number, because 7945605 - 2⁵ = 7945573 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7945605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13987 + ... + 14543.

It is an arithmetic number, because the mean of its divisors is an integer number (576693).

Almost surely, 2^7945605 is an apocalyptic number.

It is an amenable number.

7945605 is a deficient number, since it is larger than the sum of its proper divisors (5895027).

7945605 is a wasteful number, since it uses less digits than its factorization.

7945605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 7945605 is about 2818.7949552956. The cubic root of 7945605 is about 199.5456770682.

The spelling of 7945605 in words is "seven million, nine hundred forty-five thousand, six hundred five".