6890771 has 4 divisors (see below), whose sum is σ = 6901200. Its totient is φ = 6880344.

The previous prime is 6890761. The next prime is 6890789. The reversal of 6890771 is 1770986.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6890771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6890701) 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, 4151 + ... + 5568.

It is an arithmetic number, because the mean of its divisors is an integer number (1725300).

Almost surely, 2^6890771 is an apocalyptic number.

6890771 is a deficient number, since it is larger than the sum of its proper divisors (10429).

6890771 is an equidigital number, since it uses as much as digits as its factorization.

6890771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10428.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 6890771 is about 2625.0278093765. The cubic root of 6890771 is about 190.2929092451.

The spelling of 6890771 in words is "six million, eight hundred ninety thousand, seven hundred seventy-one".