6839629 has 2 divisors, whose sum is σ = 6839630. Its totient is φ = 6839628.

The previous prime is 6839587. The next prime is 6839659. The reversal of 6839629 is 9269386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3617604 + 3222025 = 1902^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 6839629 - 2¹¹ = 6837581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6839659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3419814 + 3419815.

It is an arithmetic number, because the mean of its divisors is an integer number (3419815).

Almost surely, 2^6839629 is an apocalyptic number.

It is an amenable number.

6839629 is a deficient number, since it is larger than the sum of its proper divisors (1).

6839629 is an equidigital number, since it uses as much as digits as its factorization.

6839629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 6839629 is about 2615.2684374649. The cubic root of 6839629 is about 189.8209670882.

The spelling of 6839629 in words is "six million, eight hundred thirty-nine thousand, six hundred twenty-nine".