4985890 has 32 divisors (see below), whose sum is σ = 11047680. Its totient is φ = 1577664.

The previous prime is 4985881. The next prime is 4985909. The reversal of 4985890 is 985894.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1830 + ... + 3649.

It is an arithmetic number, because the mean of its divisors is an integer number (345240).

Almost surely, 2^4985890 is an apocalyptic number.

4985890 is an abundant number, since it is smaller than the sum of its proper divisors (6061790).

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

4985890 is a wasteful number, since it uses less digits than its factorization.

4985890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 4985890 is about 2232.9106565199. The cubic root of 4985890 is about 170.8365913848.

The spelling of 4985890 in words is "four million, nine hundred eighty-five thousand, eight hundred ninety".