6813739 has 2 divisors, whose sum is σ = 6813740. Its totient is φ = 6813738.

The previous prime is 6813713. The next prime is 6813797. The reversal of 6813739 is 9373186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6813739 - 2⁹ = 6813227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6813698 and 6813707.

It is not a weakly prime, because it can be changed into another prime (6813139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3406869 + 3406870.

It is an arithmetic number, because the mean of its divisors is an integer number (3406870).

Almost surely, 2^6813739 is an apocalyptic number.

6813739 is a deficient number, since it is larger than the sum of its proper divisors (1).

6813739 is an equidigital number, since it uses as much as digits as its factorization.

6813739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 6813739 is about 2610.3139657903. The cubic root of 6813739 is about 189.5811549187.

The spelling of 6813739 in words is "six million, eight hundred thirteen thousand, seven hundred thirty-nine".