6955978 has 12 divisors (see below), whose sum is σ = 10699830. Its totient is φ = 3391520.

The previous prime is 6955943. The next prime is 6955979. The reversal of 6955978 is 8795596.

It can be written as a sum of positive squares in 3 ways, for example, as 1181569 + 5774409 = 1087^2 + 2403^2 .

It is not an unprimeable number, because it can be changed into a prime (6955979) 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 5 ways as a sum of consecutive naturals, for example, 2328 + ... + 4396.

Almost surely, 2^6955978 is an apocalyptic number.

6955978 is a deficient number, since it is larger than the sum of its proper divisors (3743852).

6955978 is a wasteful number, since it uses less digits than its factorization.

6955978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153 (or 2112 counting only the distinct ones).

The product of its digits is 680400, while the sum is 49.

The square root of 6955978 is about 2637.4188139164. The cubic root of 6955978 is about 190.8912696757.

The spelling of 6955978 in words is "six million, nine hundred fifty-five thousand, nine hundred seventy-eight".