6959661 has 4 divisors (see below), whose sum is σ = 9279552. Its totient is φ = 4639772.

The previous prime is 6959651. The next prime is 6959671. The reversal of 6959661 is 1669596.

6959661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (6959651) and next prime (6959671).

It is a cyclic number.

It is not a de Polignac number, because 6959661 - 2⁶ = 6959597 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6959621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159941 + ... + 1159946.

It is an arithmetic number, because the mean of its divisors is an integer number (2319888).

Almost surely, 2^6959661 is an apocalyptic number.

It is an amenable number.

6959661 is a deficient number, since it is larger than the sum of its proper divisors (2319891).

6959661 is a wasteful number, since it uses less digits than its factorization.

6959661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319890.

The product of its digits is 87480, while the sum is 42.

The square root of 6959661 is about 2638.1169420630. The cubic root of 6959661 is about 190.9249542992.

The spelling of 6959661 in words is "six million, nine hundred fifty-nine thousand, six hundred sixty-one".