6940579 has 4 divisors (see below), whose sum is σ = 6947560. Its totient is φ = 6933600.

The previous prime is 6940561. The next prime is 6940589. The reversal of 6940579 is 9750496.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6940579 - 2¹¹ = 6938531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6940589) 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, 1689 + ... + 4090.

It is an arithmetic number, because the mean of its divisors is an integer number (1736890).

Almost surely, 2^6940579 is an apocalyptic number.

6940579 is a deficient number, since it is larger than the sum of its proper divisors (6981).

6940579 is a wasteful number, since it uses less digits than its factorization.

6940579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6980.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 6940579 is about 2634.4978648691. The cubic root of 6940579 is about 190.7503018878.

The spelling of 6940579 in words is "six million, nine hundred forty thousand, five hundred seventy-nine".