6999007 has 2 divisors, whose sum is σ = 6999008. Its totient is φ = 6999006.

The previous prime is 6998989. The next prime is 6999017. The reversal of 6999007 is 7009996.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6999007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6999017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3499503 + 3499504.

It is an arithmetic number, because the mean of its divisors is an integer number (3499504).

Almost surely, 2^6999007 is an apocalyptic number.

6999007 is a deficient number, since it is larger than the sum of its proper divisors (1).

6999007 is an equidigital number, since it uses as much as digits as its factorization.

6999007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 6999007 is about 2645.5636450481. The cubic root of 6999007 is about 191.2840724177.

The spelling of 6999007 in words is "six million, nine hundred ninety-nine thousand, seven".