6427689 has 8 divisors (see below), whose sum is σ = 8597472. Its totient is φ = 4271520.

The previous prime is 6427679. The next prime is 6427703. The reversal of 6427689 is 9867246.

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

It is not a de Polignac number, because 6427689 - 2⁵ = 6427657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6427689.

It is not an unprimeable number, because it can be changed into a prime (6427639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2244 + ... + 4229.

It is an arithmetic number, because the mean of its divisors is an integer number (1074684).

Almost surely, 2^6427689 is an apocalyptic number.

It is an amenable number.

6427689 is a deficient number, since it is larger than the sum of its proper divisors (2169783).

6427689 is a wasteful number, since it uses less digits than its factorization.

6427689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807.

The product of its digits is 145152, while the sum is 42.

The square root of 6427689 is about 2535.2887409524. The cubic root of 6427689 is about 185.9309201212.

The spelling of 6427689 in words is "six million, four hundred twenty-seven thousand, six hundred eighty-nine".