6889799069 has 4 divisors (see below), whose sum is σ = 6890860860. Its totient is φ = 6888737280.

The previous prime is 6889799053. The next prime is 6889799087. The reversal of 6889799069 is 9609979886.

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 3599400025 + 3290399044 = 59995^2 + 57362^2 .

It is a cyclic number.

It is not a de Polignac number, because 6889799069 - 2⁴ = 6889799053 is a prime.

It is a super-2 number, since 2×6889799069² = 94938662422386533522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6889798993 and 6889799011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6889799099) 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, 521102 + ... + 534159.

It is an arithmetic number, because the mean of its divisors is an integer number (1722715215).

Almost surely, 2^6889799069 is an apocalyptic number.

It is an amenable number.

6889799069 is a deficient number, since it is larger than the sum of its proper divisors (1061791).

6889799069 is a wasteful number, since it uses less digits than its factorization.

6889799069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061790.

The product of its (nonzero) digits is 105815808, while the sum is 71.

The square root of 6889799069 is about 83004.8135290960. The cubic root of 6889799069 is about 1902.8396199894.

The spelling of 6889799069 in words is "six billion, eight hundred eighty-nine million, seven hundred ninety-nine thousand, sixty-nine".