6424687 has 4 divisors (see below), whose sum is σ = 6533640. Its totient is φ = 6315736.

The previous prime is 6424681. The next prime is 6424699. The reversal of 6424687 is 7864246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6424687 - 2¹¹ = 6422639 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 (6424681) 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, 54388 + ... + 54505.

It is an arithmetic number, because the mean of its divisors is an integer number (1633410).

Almost surely, 2^6424687 is an apocalyptic number.

6424687 is a deficient number, since it is larger than the sum of its proper divisors (108953).

6424687 is a wasteful number, since it uses less digits than its factorization.

6424687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108952.

The product of its digits is 64512, while the sum is 37.

The square root of 6424687 is about 2534.6966287901. The cubic root of 6424687 is about 185.9019697711.

It can be divided in two parts, 642 and 4687, that added together give a square (5329 = 73²).

The spelling of 6424687 in words is "six million, four hundred twenty-four thousand, six hundred eighty-seven".