6889967 has 8 divisors (see below), whose sum is σ = 8128512. Its totient is φ = 5715000.

The previous prime is 6889963. The next prime is 6889969. The reversal of 6889967 is 7699886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6889967 - 2² = 6889963 is a prime.

It is a super-2 number, since 2×6889967² = 94943290522178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6889963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15659 + ... + 16092.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064).

Almost surely, 2^6889967 is an apocalyptic number.

6889967 is a deficient number, since it is larger than the sum of its proper divisors (1238545).

6889967 is a wasteful number, since it uses less digits than its factorization.

6889967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31789.

The product of its digits is 1306368, while the sum is 53.

The square root of 6889967 is about 2624.8746636744. The cubic root of 6889967 is about 190.2855079713.

The spelling of 6889967 in words is "six million, eight hundred eighty-nine thousand, nine hundred sixty-seven".