6880000889 has 4 divisors (see below), whose sum is σ = 6915648756. Its totient is φ = 6844353024.

The previous prime is 6880000823. The next prime is 6880000943. The reversal of 6880000889 is 9880000886.

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 696537664 + 6183463225 = 26392^2 + 78635^2 .

It is a cyclic number.

It is not a de Polignac number, because 6880000889 - 2²⁴ = 6863223673 is a prime.

It is a super-3 number, since 3×6880000889³ (a number of 30 digits) contains 333 as substring.

6880000889 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6880000489) 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, 17823644 + ... + 17824029.

It is an arithmetic number, because the mean of its divisors is an integer number (1728912189).

Almost surely, 2^6880000889 is an apocalyptic number.

It is an amenable number.

6880000889 is a deficient number, since it is larger than the sum of its proper divisors (35647867).

6880000889 is a wasteful number, since it uses less digits than its factorization.

6880000889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35647866.

The product of its (nonzero) digits is 221184, while the sum is 47.

The square root of 6880000889 is about 82945.7707722341. The cubic root of 6880000889 is about 1901.9371645313.

The spelling of 6880000889 in words is "six billion, eight hundred eighty million, eight hundred eighty-nine", and thus it is an aban number.