6439007 has 2 divisors, whose sum is σ = 6439008. Its totient is φ = 6439006.

The previous prime is 6439003. The next prime is 6439021. The reversal of 6439007 is 7009346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6439007 - 2² = 6439003 is a prime.

It is a super-2 number, since 2×6439007² = 82921622292098, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6439001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3219503 + 3219504.

It is an arithmetic number, because the mean of its divisors is an integer number (3219504).

Almost surely, 2^6439007 is an apocalyptic number.

6439007 is a deficient number, since it is larger than the sum of its proper divisors (1).

6439007 is an equidigital number, since it uses as much as digits as its factorization.

6439007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 6439007 is about 2537.5198521391. The cubic root of 6439007 is about 186.0399863929.

The spelling of 6439007 in words is "six million, four hundred thirty-nine thousand, seven".