6945605 has 16 divisors (see below), whose sum is σ = 9044784. Its totient is φ = 5099520.

The previous prime is 6945577. The next prime is 6945607. The reversal of 6945605 is 5065496.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 49729 + 6895876 = 223^2 + 2626^2 .

It is not a de Polignac number, because 6945605 - 2⁶ = 6945541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6945607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2489 + ... + 4481.

It is an arithmetic number, because the mean of its divisors is an integer number (565299).

Almost surely, 2^6945605 is an apocalyptic number.

It is an amenable number.

6945605 is a deficient number, since it is larger than the sum of its proper divisors (2099179).

6945605 is a wasteful number, since it uses less digits than its factorization.

6945605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 6945605 is about 2635.4515742089. The cubic root of 6945605 is about 190.7963345360.

The spelling of 6945605 in words is "six million, nine hundred forty-five thousand, six hundred five".