4805989 has 4 divisors (see below), whose sum is σ = 4810624. Its totient is φ = 4801356.

The previous prime is 4805959. The next prime is 4806001. The reversal of 4805989 is 9895084.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4805989 - 2⁷ = 4805861 is a prime.

It is a super-3 number, since 3×4805989³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4805929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34 + ... + 3100.

It is an arithmetic number, because the mean of its divisors is an integer number (1202656).

Almost surely, 2^4805989 is an apocalyptic number.

It is an amenable number.

4805989 is a deficient number, since it is larger than the sum of its proper divisors (4635).

4805989 is a wasteful number, since it uses less digits than its factorization.

4805989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4634.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 4805989 is about 2192.2565999444. The cubic root of 4805989 is about 168.7566610997.

The spelling of 4805989 in words is "four million, eight hundred five thousand, nine hundred eighty-nine".