6427687 has 8 divisors (see below), whose sum is σ = 7361696. Its totient is φ = 5497632.

The previous prime is 6427679. The next prime is 6427703. The reversal of 6427687 is 7867246.

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

It is not a de Polignac number, because 6427687 - 2³ = 6427679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6427607) 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, 4693 + ... + 5905.

It is an arithmetic number, because the mean of its divisors is an integer number (920212).

Almost surely, 2^6427687 is an apocalyptic number.

6427687 is a deficient number, since it is larger than the sum of its proper divisors (934009).

6427687 is a wasteful number, since it uses less digits than its factorization.

6427687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977.

The product of its digits is 112896, while the sum is 40.

The square root of 6427687 is about 2535.2883465200. The cubic root of 6427687 is about 185.9309008368.

The spelling of 6427687 in words is "six million, four hundred twenty-seven thousand, six hundred eighty-seven".