6615967 has 2 divisors, whose sum is σ = 6615968. Its totient is φ = 6615966.

The previous prime is 6615943. The next prime is 6615977. The reversal of 6615967 is 7695166.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6615967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6615977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3307983 + 3307984.

It is an arithmetic number, because the mean of its divisors is an integer number (3307984).

Almost surely, 2^6615967 is an apocalyptic number.

6615967 is a deficient number, since it is larger than the sum of its proper divisors (1).

6615967 is an equidigital number, since it uses as much as digits as its factorization.

6615967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 6615967 is about 2572.1522116702. The cubic root of 6615967 is about 187.7288890645.

The spelling of 6615967 in words is "six million, six hundred fifteen thousand, nine hundred sixty-seven".