6959665 has 4 divisors (see below), whose sum is σ = 8351604. Its totient is φ = 5567728.

The previous prime is 6959651. The next prime is 6959671. The reversal of 6959665 is 5669596.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1540081 + 5419584 = 1241^2 + 2328^2 .

It is a cyclic number.

It is not a de Polignac number, because 6959665 - 2⁹ = 6959153 is a prime.

It is an Ulam number.

It is a Duffinian number.

6959665 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695962 + ... + 695971.

It is an arithmetic number, because the mean of its divisors is an integer number (2087901).

Almost surely, 2^6959665 is an apocalyptic number.

It is an amenable number.

6959665 is a deficient number, since it is larger than the sum of its proper divisors (1391939).

6959665 is a wasteful number, since it uses less digits than its factorization.

6959665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391938.

The product of its digits is 437400, while the sum is 46.

The square root of 6959665 is about 2638.1177001794. The cubic root of 6959665 is about 190.9249908766.

The spelling of 6959665 in words is "six million, nine hundred fifty-nine thousand, six hundred sixty-five".