6947579 has 4 divisors (see below), whose sum is σ = 7009176. Its totient is φ = 6885984.

The previous prime is 6947561. The next prime is 6947581. The reversal of 6947579 is 9757496.

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 6947579 - 2¹² = 6943483 is a prime.

It is a super-2 number, since 2×6947579² = 96537707922482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6947519) 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, 30629 + ... + 30854.

It is an arithmetic number, because the mean of its divisors is an integer number (1752294).

Almost surely, 2^6947579 is an apocalyptic number.

6947579 is a deficient number, since it is larger than the sum of its proper divisors (61597).

6947579 is a wasteful number, since it uses less digits than its factorization.

6947579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61596.

The product of its digits is 476280, while the sum is 47.

The square root of 6947579 is about 2635.8260564764. The cubic root of 6947579 is about 190.8144081374.

The spelling of 6947579 in words is "six million, nine hundred forty-seven thousand, five hundred seventy-nine".