6945997 has 4 divisors (see below), whose sum is σ = 7007580. Its totient is φ = 6884416.

The previous prime is 6945959. The next prime is 6946003. The reversal of 6945997 is 7995496.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2869636 + 4076361 = 1694^2 + 2019^2 .

It is a cyclic number.

It is not a de Polignac number, because 6945997 - 2¹⁵ = 6913229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6945997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6945947) 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, 30622 + ... + 30847.

It is an arithmetic number, because the mean of its divisors is an integer number (1751895).

Almost surely, 2^6945997 is an apocalyptic number.

It is an amenable number.

6945997 is a deficient number, since it is larger than the sum of its proper divisors (61583).

6945997 is a wasteful number, since it uses less digits than its factorization.

6945997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61582.

The product of its digits is 612360, while the sum is 49.

The square root of 6945997 is about 2635.5259437160. The cubic root of 6945997 is about 190.7999238925.

The spelling of 6945997 in words is "six million, nine hundred forty-five thousand, nine hundred ninety-seven".