6890565 has 16 divisors (see below), whose sum is σ = 12027456. Its totient is φ = 3340800.

The previous prime is 6890549. The next prime is 6890579. The reversal of 6890565 is 5650986.

It is not a de Polignac number, because 6890565 - 2⁴ = 6890549 is a prime.

It is a super-3 number, since 3×6890565³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20716 + ... + 21045.

It is an arithmetic number, because the mean of its divisors is an integer number (751716).

Almost surely, 2^6890565 is an apocalyptic number.

It is an amenable number.

6890565 is a deficient number, since it is larger than the sum of its proper divisors (5136891).

6890565 is a wasteful number, since it uses less digits than its factorization.

6890565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41780.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 6890565 is about 2624.9885714037. The cubic root of 6890565 is about 190.2910129537.

The spelling of 6890565 in words is "six million, eight hundred ninety thousand, five hundred sixty-five".