6779547 has 12 divisors (see below), whose sum is σ = 10057840. Its totient is φ = 4397328.

The previous prime is 6779537. The next prime is 6779557. The reversal of 6779547 is 7459776.

It is an interprime number because it is at equal distance from previous prime (6779537) and next prime (6779557).

It is not a de Polignac number, because 6779547 - 2¹⁹ = 6255259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6779537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9847 + ... + 10512.

Almost surely, 2^6779547 is an apocalyptic number.

6779547 is a deficient number, since it is larger than the sum of its proper divisors (3278293).

6779547 is a wasteful number, since it uses less digits than its factorization.

6779547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20402 (or 20399 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 6779547 is about 2603.7563250043. The cubic root of 6779547 is about 189.2635108235.

The spelling of 6779547 in words is "six million, seven hundred seventy-nine thousand, five hundred forty-seven".