6677391 has 8 divisors (see below), whose sum is σ = 10175104. Its totient is φ = 3815640.

The previous prime is 6677389. The next prime is 6677393. The reversal of 6677391 is 1937766.

6677391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6677389) and next prime (6677393).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6677391 - 2¹ = 6677389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6677393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158965 + ... + 159006.

It is an arithmetic number, because the mean of its divisors is an integer number (1271888).

Almost surely, 2^6677391 is an apocalyptic number.

6677391 is a deficient number, since it is larger than the sum of its proper divisors (3497713).

6677391 is a wasteful number, since it uses less digits than its factorization.

6677391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317981.

The product of its digits is 47628, while the sum is 39.

The square root of 6677391 is about 2584.0648211684. The cubic root of 6677391 is about 188.3080715501.

The spelling of 6677391 in words is "six million, six hundred seventy-seven thousand, three hundred ninety-one".