4994989 has 8 divisors (see below), whose sum is σ = 5294520. Its totient is φ = 4704000.

The previous prime is 4994987. The next prime is 4994993. The reversal of 4994989 is 9894994.

It can be written as a sum of positive squares in 4 ways, for example, as 110889 + 4884100 = 333^2 + 2210^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4994989 - 2¹ = 4994987 is a prime.

It is a super-2 number, since 2×4994989² = 49899830220242, which contains 22 as substring.

It is a Duffinian number.

4994989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4994981) 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, 912 + ... + 3289.

It is an arithmetic number, because the mean of its divisors is an integer number (661815).

Almost surely, 2^4994989 is an apocalyptic number.

It is an amenable number.

4994989 is a deficient number, since it is larger than the sum of its proper divisors (299531).

4994989 is a wasteful number, since it uses less digits than its factorization.

4994989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271.

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

The square root of 4994989 is about 2234.9472029558. The cubic root of 4994989 is about 170.9404509772.

The spelling of 4994989 in words is "four million, nine hundred ninety-four thousand, nine hundred eighty-nine".