6950639 has 2 divisors, whose sum is σ = 6950640. Its totient is φ = 6950638.

The previous prime is 6950617. The next prime is 6950641. The reversal of 6950639 is 9360596.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6950639 - 2²⁰ = 5902063 is a prime.

It is a super-2 number, since 2×6950639² = 96622765016642, which contains 22 as substring.

Together with 6950641, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6950659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3475319 + 3475320.

It is an arithmetic number, because the mean of its divisors is an integer number (3475320).

Almost surely, 2^6950639 is an apocalyptic number.

6950639 is a deficient number, since it is larger than the sum of its proper divisors (1).

6950639 is an equidigital number, since it uses as much as digits as its factorization.

6950639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 6950639 is about 2636.4064557651. The cubic root of 6950639 is about 190.8424182009.

The spelling of 6950639 in words is "six million, nine hundred fifty thousand, six hundred thirty-nine".