6645795 has 32 divisors (see below), whose sum is σ = 11575872. Its totient is φ = 3236352.

The previous prime is 6645787. The next prime is 6645799. The reversal of 6645795 is 5975466.

It is not a de Polignac number, because 6645795 - 2³ = 6645787 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6645799) 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, 33637 + ... + 33833.

It is an arithmetic number, because the mean of its divisors is an integer number (361746).

Almost surely, 2^6645795 is an apocalyptic number.

6645795 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6645795 is a deficient number, since it is larger than the sum of its proper divisors (4930077).

6645795 is a wasteful number, since it uses less digits than its factorization.

6645795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391.

The product of its digits is 226800, while the sum is 42.

The square root of 6645795 is about 2577.9439481882. The cubic root of 6645795 is about 188.0105905457.

The spelling of 6645795 in words is "six million, six hundred forty-five thousand, seven hundred ninety-five".