5987813 has 8 divisors (see below), whose sum is σ = 6473208. Its totient is φ = 5505984.

The previous prime is 5987803. The next prime is 5987819. The reversal of 5987813 is 3187895.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 332929 + 5654884 = 577^2 + 2378^2 .

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 5987813 - 2⁶ = 5987749 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 (5987819) 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, 3395 + ... + 4847.

It is an arithmetic number, because the mean of its divisors is an integer number (809151).

Almost surely, 2^5987813 is an apocalyptic number.

It is an amenable number.

5987813 is a deficient number, since it is larger than the sum of its proper divisors (485395).

5987813 is a wasteful number, since it uses less digits than its factorization.

5987813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783.

The product of its digits is 60480, while the sum is 41.

The square root of 5987813 is about 2447.0008173272. Note that the first 3 decimals coincide. The cubic root of 5987813 is about 181.5889467323.

The spelling of 5987813 in words is "five million, nine hundred eighty-seven thousand, eight hundred thirteen".