4642686 has 24 divisors (see below), whose sum is σ = 10332504. Its totient is φ = 1505520.

The previous prime is 4642679. The next prime is 4642721. The reversal of 4642686 is 6862464.

It is a happy number.

4642686 is a `hidden beast` number, since 4 + 642 + 6 + 8 + 6 = 666.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 4642686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2820 + ... + 4151.

It is an arithmetic number, because the mean of its divisors is an integer number (430521).

Almost surely, 2^4642686 is an apocalyptic number.

4642686 is an abundant number, since it is smaller than the sum of its proper divisors (5689818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4642686 is a wasteful number, since it uses less digits than its factorization.

4642686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016 (or 7013 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 4642686 is about 2154.6893047491. The cubic root of 4642686 is about 166.8231960564.

The spelling of 4642686 in words is "four million, six hundred forty-two thousand, six hundred eighty-six".