6839691 has 4 divisors (see below), whose sum is σ = 9119592. Its totient is φ = 4559792.

The previous prime is 6839689. The next prime is 6839713. The reversal of 6839691 is 1969386.

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 6839691 - 2¹ = 6839689 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (6839891) 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, 1139946 + ... + 1139951.

It is an arithmetic number, because the mean of its divisors is an integer number (2279898).

Almost surely, 2^6839691 is an apocalyptic number.

6839691 is a deficient number, since it is larger than the sum of its proper divisors (2279901).

6839691 is a wasteful number, since it uses less digits than its factorization.

6839691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279900.

The product of its digits is 69984, while the sum is 42.

The square root of 6839691 is about 2615.2802909057. The cubic root of 6839691 is about 189.8215406507.

The spelling of 6839691 in words is "six million, eight hundred thirty-nine thousand, six hundred ninety-one".