6909243 has 8 divisors (see below), whose sum is σ = 10049856. Its totient is φ = 4187400.

The previous prime is 6909173. The next prime is 6909247. The reversal of 6909243 is 3429096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6909243 - 2¹⁴ = 6892859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 209371 = 6909243 / (6 + 9 + 0 + 9 + 2 + 4 + 3).

6909243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6909247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104653 + ... + 104718.

It is an arithmetic number, because the mean of its divisors is an integer number (1256232).

Almost surely, 2^6909243 is an apocalyptic number.

6909243 is a deficient number, since it is larger than the sum of its proper divisors (3140613).

6909243 is a wasteful number, since it uses less digits than its factorization.

6909243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209385.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 6909243 is about 2628.5438934893. The cubic root of 6909243 is about 190.4627961048.

The spelling of 6909243 in words is "six million, nine hundred nine thousand, two hundred forty-three".