6890438 has 8 divisors (see below), whose sum is σ = 10505280. Its totient is φ = 3388680.

The previous prime is 6890437. The next prime is 6890447. The reversal of 6890438 is 8340986.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890437) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28118 + ... + 28361.

It is an arithmetic number, because the mean of its divisors is an integer number (1313160).

Almost surely, 2^6890438 is an apocalyptic number.

6890438 is a deficient number, since it is larger than the sum of its proper divisors (3614842).

6890438 is a wasteful number, since it uses less digits than its factorization.

6890438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56542.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 6890438 is about 2624.9643807107. The cubic root of 6890438 is about 190.2898438620.

The spelling of 6890438 in words is "six million, eight hundred ninety thousand, four hundred thirty-eight".