6949665 has 16 divisors (see below), whose sum is σ = 12355200. Its totient is φ = 3706416.

The previous prime is 6949661. The next prime is 6949697. The reversal of 6949665 is 5669496.

It is not a de Polignac number, because 6949665 - 2² = 6949661 is a prime.

It is a super-2 number, since 2×6949665² = 96595687224450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6949665.

It is not an unprimeable number, because it can be changed into a prime (6949661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25605 + ... + 25874.

It is an arithmetic number, because the mean of its divisors is an integer number (772200).

Almost surely, 2^6949665 is an apocalyptic number.

It is an amenable number.

6949665 is a deficient number, since it is larger than the sum of its proper divisors (5405535).

6949665 is a wasteful number, since it uses less digits than its factorization.

6949665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51493 (or 51487 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 6949665 is about 2636.2217281557. The cubic root of 6949665 is about 190.8335034715.

The spelling of 6949665 in words is "six million, nine hundred forty-nine thousand, six hundred sixty-five".