4913989 has 4 divisors (see below), whose sum is σ = 5172640. Its totient is φ = 4655340.

The previous prime is 4913971. The next prime is 4913999. The reversal of 4913989 is 9893194.

4913989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4913989 - 2⁷ = 4913861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4913929) 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 3 ways as a sum of consecutive naturals, for example, 129297 + ... + 129334.

It is an arithmetic number, because the mean of its divisors is an integer number (1293160).

Almost surely, 2^4913989 is an apocalyptic number.

It is an amenable number.

4913989 is a deficient number, since it is larger than the sum of its proper divisors (258651).

4913989 is a wasteful number, since it uses less digits than its factorization.

4913989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258650.

The product of its digits is 69984, while the sum is 43.

The square root of 4913989 is about 2216.7519031231. The cubic root of 4913989 is about 170.0114063858.

The spelling of 4913989 in words is "four million, nine hundred thirteen thousand, nine hundred eighty-nine".