6975979 has 4 divisors (see below), whose sum is σ = 7216560. Its totient is φ = 6735400.

The previous prime is 6975971. The next prime is 6976033. The reversal of 6975979 is 9795796.

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

It is a cyclic number.

It is not a de Polignac number, because 6975979 - 2³ = 6975971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6975971) 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, 120247 + ... + 120304.

It is an arithmetic number, because the mean of its divisors is an integer number (1804140).

Almost surely, 2^6975979 is an apocalyptic number.

6975979 is a deficient number, since it is larger than the sum of its proper divisors (240581).

6975979 is a wasteful number, since it uses less digits than its factorization.

6975979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240580.

The product of its digits is 1071630, while the sum is 52.

The square root of 6975979 is about 2641.2078676242. The cubic root of 6975979 is about 191.0740555096.

The spelling of 6975979 in words is "six million, nine hundred seventy-five thousand, nine hundred seventy-nine".