4817989 has 16 divisors (see below), whose sum is σ = 5529600. Its totient is φ = 4158000.

The previous prime is 4817977. The next prime is 4818013. The reversal of 4817989 is 9897184.

It is a happy number.

It is not a de Polignac number, because 4817989 - 2¹⁹ = 4293701 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 (4817929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24112 + ... + 24310.

It is an arithmetic number, because the mean of its divisors is an integer number (345600).

Almost surely, 2^4817989 is an apocalyptic number.

It is an amenable number.

4817989 is a deficient number, since it is larger than the sum of its proper divisors (711611).

4817989 is a wasteful number, since it uses less digits than its factorization.

4817989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312.

The product of its digits is 145152, while the sum is 46.

The square root of 4817989 is about 2194.9917995291. The cubic root of 4817989 is about 168.8969996650.

The spelling of 4817989 in words is "four million, eight hundred seventeen thousand, nine hundred eighty-nine".