6675645 has 32 divisors (see below), whose sum is σ = 11570688. Its totient is φ = 3273728.

The previous prime is 6675601. The next prime is 6675649. The reversal of 6675645 is 5465766.

6675645 = T₁₁₁ + T₁₁₂ + ... + T₃₄₅.

It is a cyclic number.

It is not a de Polignac number, because 6675645 - 2¹⁰ = 6674621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6675649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11707 + ... + 12263.

It is an arithmetic number, because the mean of its divisors is an integer number (361584).

Almost surely, 2^6675645 is an apocalyptic number.

It is an amenable number.

6675645 is a deficient number, since it is larger than the sum of its proper divisors (4895043).

6675645 is a wasteful number, since it uses less digits than its factorization.

6675645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629.

The product of its digits is 151200, while the sum is 39.

The square root of 6675645 is about 2583.7269592587. The cubic root of 6675645 is about 188.2916572273.

The spelling of 6675645 in words is "six million, six hundred seventy-five thousand, six hundred forty-five".