6909238 has 16 divisors (see below), whose sum is σ = 12134304. Its totient is φ = 2888640.

The previous prime is 6909173. The next prime is 6909247. The reversal of 6909238 is 8329096.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 6909197 and 6909206.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5445 + ... + 6592.

It is an arithmetic number, because the mean of its divisors is an integer number (758394).

Almost surely, 2^6909238 is an apocalyptic number.

6909238 is a deficient number, since it is larger than the sum of its proper divisors (5225066).

6909238 is a wasteful number, since it uses less digits than its factorization.

6909238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12087.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 6909238 is about 2628.5429423922. The cubic root of 6909238 is about 190.4627501608.

The spelling of 6909238 in words is "six million, nine hundred nine thousand, two hundred thirty-eight".