6881069 has 4 divisors (see below), whose sum is σ = 7410396. Its totient is φ = 6351744.

The previous prime is 6881057. The next prime is 6881081. The reversal of 6881069 is 9601886.

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

It is an interprime number because it is at equal distance from previous prime (6881057) and next prime (6881081).

It can be written as a sum of positive squares in 2 ways, for example, as 4515625 + 2365444 = 2125^2 + 1538^2 .

It is a cyclic number.

It is not a de Polignac number, because 6881069 - 2¹⁶ = 6815533 is a prime.

It is a super-2 number, since 2×6881069² = 94698221165522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6881009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264644 + ... + 264669.

It is an arithmetic number, because the mean of its divisors is an integer number (1852599).

Almost surely, 2^6881069 is an apocalyptic number.

It is an amenable number.

6881069 is a deficient number, since it is larger than the sum of its proper divisors (529327).

6881069 is a wasteful number, since it uses less digits than its factorization.

6881069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529326.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 6881069 is about 2623.1791780204. The cubic root of 6881069 is about 190.2035583845.

The spelling of 6881069 in words is "six million, eight hundred eighty-one thousand, sixty-nine".