4990686 has 8 divisors (see below), whose sum is σ = 9981384. Its totient is φ = 1663560.

The previous prime is 4990679. The next prime is 4990693. The reversal of 4990686 is 6860994.

4990686 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4990679) and next prime (4990693).

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

4990686 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415885 + ... + 415896.

It is an arithmetic number, because the mean of its divisors is an integer number (1247673).

Almost surely, 2^4990686 is an apocalyptic number.

4990686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4990686 is a wasteful number, since it uses less digits than its factorization.

4990686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831786.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 4990686 is about 2233.9843329800. The cubic root of 4990686 is about 170.8913505634.

The spelling of 4990686 in words is "four million, nine hundred ninety thousand, six hundred eighty-six".