4949989 has 8 divisors (see below), whose sum is σ = 5446080. Its totient is φ = 4498780.

The previous prime is 4949983. The next prime is 4950067. The reversal of 4949989 is 9899494.

4949989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-4949989 is a prime.

It is a super-2 number, since 2×4949989² = 49004782200242, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4949983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529 + ... + 3190.

It is an arithmetic number, because the mean of its divisors is an integer number (680760).

Almost surely, 2^4949989 is an apocalyptic number.

It is an amenable number.

4949989 is a deficient number, since it is larger than the sum of its proper divisors (496091).

4949989 is an equidigital number, since it uses as much as digits as its factorization.

4949989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752 (or 3730 counting only the distinct ones).

The product of its digits is 839808, while the sum is 52.

The square root of 4949989 is about 2224.8570740612. The cubic root of 4949989 is about 170.4255658445.

The spelling of 4949989 in words is "four million, nine hundred forty-nine thousand, nine hundred eighty-nine".