4775989 has 8 divisors (see below), whose sum is σ = 4921560. Its totient is φ = 4632576.

The previous prime is 4775977. The next prime is 4775993. The reversal of 4775989 is 9895774.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 119025 + 4656964 = 345^2 + 2158^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4775989 - 2¹¹ = 4773941 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4775909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4677 + ... + 5605.

It is an arithmetic number, because the mean of its divisors is an integer number (615195).

Almost surely, 2^4775989 is an apocalyptic number.

It is an amenable number.

4775989 is a deficient number, since it is larger than the sum of its proper divisors (145571).

4775989 is an equidigital number, since it uses as much as digits as its factorization.

4775989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079.

The product of its digits is 635040, while the sum is 49.

The square root of 4775989 is about 2185.4036240475. The cubic root of 4775989 is about 168.4047896697.

The spelling of 4775989 in words is "four million, seven hundred seventy-five thousand, nine hundred eighty-nine".