6909045 has 32 divisors (see below), whose sum is σ = 12991104. Its totient is φ = 3091200.

The previous prime is 6909041. The next prime is 6909053. The reversal of 6909045 is 5409096.

It is a happy number.

It is not a de Polignac number, because 6909045 - 2² = 6909041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 6908997 and 6909015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6909041) 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, 535 + ... + 3755.

It is an arithmetic number, because the mean of its divisors is an integer number (405972).

Almost surely, 2^6909045 is an apocalyptic number.

6909045 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6909045 is a deficient number, since it is larger than the sum of its proper divisors (6082059).

6909045 is a wasteful number, since it uses less digits than its factorization.

6909045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 6909045 is about 2628.5062297815. The cubic root of 6909045 is about 190.4609767065.

The spelling of 6909045 in words is "six million, nine hundred nine thousand, forty-five".