4619989 has 4 divisors (see below), whose sum is σ = 5040000. Its totient is φ = 4199980.

The previous prime is 4619981. The next prime is 4620001. The reversal of 4619989 is 9899164.

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 4619989 - 2³ = 4619981 is a prime.

It is a Duffinian number.

4619989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4619981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209989 + ... + 210010.

It is an arithmetic number, because the mean of its divisors is an integer number (1260000).

Almost surely, 2^4619989 is an apocalyptic number.

It is an amenable number.

4619989 is a deficient number, since it is larger than the sum of its proper divisors (420011).

4619989 is a wasteful number, since it uses less digits than its factorization.

4619989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420010.

The product of its digits is 139968, while the sum is 46.

The square root of 4619989 is about 2149.4159671874. The cubic root of 4619989 is about 166.5508987164.

The spelling of 4619989 in words is "four million, six hundred nineteen thousand, nine hundred eighty-nine".