6955945 has 4 divisors (see below), whose sum is σ = 8347140. Its totient is φ = 5564752.

The previous prime is 6955943. The next prime is 6955979. The reversal of 6955945 is 5495596.

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 3956121 + 2999824 = 1989^2 + 1732^2 .

It is a cyclic number.

It is not a de Polignac number, because 6955945 - 2¹ = 6955943 is a prime.

6955945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6955943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695590 + ... + 695599.

It is an arithmetic number, because the mean of its divisors is an integer number (2086785).

Almost surely, 2^6955945 is an apocalyptic number.

It is an amenable number.

6955945 is a deficient number, since it is larger than the sum of its proper divisors (1391195).

6955945 is a wasteful number, since it uses less digits than its factorization.

6955945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391194.

The product of its digits is 243000, while the sum is 43.

The square root of 6955945 is about 2637.4125577922. The cubic root of 6955945 is about 190.8909678048.

The spelling of 6955945 in words is "six million, nine hundred fifty-five thousand, nine hundred forty-five".