6909136 has 40 divisors (see below), whose sum is σ = 14686560. Its totient is φ = 3129216.

The previous prime is 6909127. The next prime is 6909151. The reversal of 6909136 is 6319096.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11991 + ... + 12553.

It is an arithmetic number, because the mean of its divisors is an integer number (367164).

Almost surely, 2^6909136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6909136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7343280).

6909136 is an abundant number, since it is smaller than the sum of its proper divisors (7777424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6909136 is a wasteful number, since it uses less digits than its factorization.

6909136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 6909136 is about 2628.5235399364. The cubic root of 6909136 is about 190.4618128989.

The spelling of 6909136 in words is "six million, nine hundred nine thousand, one hundred thirty-six".