4989613 has 2 divisors, whose sum is σ = 4989614. Its totient is φ = 4989612.

The previous prime is 4989599. The next prime is 4989637. The reversal of 4989613 is 3169894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4313929 + 675684 = 2077^2 + 822^2 .

It is a cyclic number.

It is not a de Polignac number, because 4989613 - 2⁵ = 4989581 is a prime.

4989613 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4989113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2494806 + 2494807.

It is an arithmetic number, because the mean of its divisors is an integer number (2494807).

Almost surely, 2^4989613 is an apocalyptic number.

It is an amenable number.

4989613 is a deficient number, since it is larger than the sum of its proper divisors (1).

4989613 is an equidigital number, since it uses as much as digits as its factorization.

4989613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 4989613 is about 2233.7441661927. The cubic root of 4989613 is about 170.8791024434.

The spelling of 4989613 in words is "four million, nine hundred eighty-nine thousand, six hundred thirteen".