6890285 has 4 divisors (see below), whose sum is σ = 8268348. Its totient is φ = 5512224.

The previous prime is 6890269. The next prime is 6890309. The reversal of 6890285 is 5820986.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4024036 + 2866249 = 2006^2 + 1693^2 .

It is a cyclic number.

It is not a de Polignac number, because 6890285 - 2⁴ = 6890269 is a prime.

It is a super-3 number, since 3×6890285³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 689024 + ... + 689033.

It is an arithmetic number, because the mean of its divisors is an integer number (2067087).

Almost surely, 2^6890285 is an apocalyptic number.

It is an amenable number.

6890285 is a deficient number, since it is larger than the sum of its proper divisors (1378063).

6890285 is a wasteful number, since it uses less digits than its factorization.

6890285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378062.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 6890285 is about 2624.9352372963. The cubic root of 6890285 is about 190.2884354096.

The spelling of 6890285 in words is "six million, eight hundred ninety thousand, two hundred eighty-five".