5820989 has 4 divisors (see below), whose sum is σ = 5825820. Its totient is φ = 5816160.

The previous prime is 5820977. The next prime is 5821003. The reversal of 5820989 is 9890285.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1800964 + 4020025 = 1342^2 + 2005^2 .

It is a cyclic number.

It is not a de Polignac number, because 5820989 - 2²⁰ = 4772413 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 (5820929) 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, 1049 + ... + 3569.

It is an arithmetic number, because the mean of its divisors is an integer number (1456455).

Almost surely, 2^5820989 is an apocalyptic number.

It is an amenable number.

5820989 is a deficient number, since it is larger than the sum of its proper divisors (4831).

5820989 is a wasteful number, since it uses less digits than its factorization.

5820989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 5820989 is about 2412.6725845004. The cubic root of 5820989 is about 179.8866467389.

The spelling of 5820989 in words is "five million, eight hundred twenty thousand, nine hundred eighty-nine".