6825739 has 2 divisors, whose sum is σ = 6825740. Its totient is φ = 6825738.

The previous prime is 6825737. The next prime is 6825743. The reversal of 6825739 is 9375286.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6825739 - 2¹ = 6825737 is a prime.

It is a super-2 number, since 2×6825739² = 93181425792242, which contains 22 as substring.

Together with 6825737, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6825737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3412869 + 3412870.

It is an arithmetic number, because the mean of its divisors is an integer number (3412870).

Almost surely, 2^6825739 is an apocalyptic number.

6825739 is a deficient number, since it is larger than the sum of its proper divisors (1).

6825739 is an equidigital number, since it uses as much as digits as its factorization.

6825739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 6825739 is about 2612.6115287199. The cubic root of 6825739 is about 189.6923831123.

The spelling of 6825739 in words is "six million, eight hundred twenty-five thousand, seven hundred thirty-nine".