6646965 has 32 divisors (see below), whose sum is σ = 11612160. Its totient is φ = 3227136.

The previous prime is 6646957. The next prime is 6646967. The reversal of 6646965 is 5696466.

6646965 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6646965 - 2³ = 6646957 is a prime.

It is a super-2 number, since 2×6646965² = 88364287422450, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6646967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17164 + ... + 17546.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

Almost surely, 2^6646965 is an apocalyptic number.

6646965 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6646965 is a deficient number, since it is larger than the sum of its proper divisors (4965195).

6646965 is a wasteful number, since it uses less digits than its factorization.

6646965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its digits is 233280, while the sum is 42.

The square root of 6646965 is about 2578.1708632284. The cubic root of 6646965 is about 188.0216230599.

The spelling of 6646965 in words is "six million, six hundred forty-six thousand, nine hundred sixty-five".