5991090 has 64 divisors (see below), whose sum is σ = 16809984. Its totient is φ = 1338048.

The previous prime is 5991071. The next prime is 5991101. The reversal of 5991090 is 901995.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9567 + ... + 10173.

It is an arithmetic number, because the mean of its divisors is an integer number (262656).

Almost surely, 2^5991090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5991090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8404992).

5991090 is an abundant number, since it is smaller than the sum of its proper divisors (10818894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5991090 is a wasteful number, since it uses less digits than its factorization.

5991090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 3645, while the sum is 33.

The square root of 5991090 is about 2447.6703209379. The cubic root of 5991090 is about 181.6220672531.

The spelling of 5991090 in words is "five million, nine hundred ninety-one thousand, ninety".