5811990 has 32 divisors (see below), whose sum is σ = 14052096. Its totient is φ = 1538400.

The previous prime is 5811979. The next prime is 5812013. The reversal of 5811990 is 991185.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3889 + ... + 5171.

It is an arithmetic number, because the mean of its divisors is an integer number (439128).

Almost surely, 2^5811990 is an apocalyptic number.

5811990 is an abundant number, since it is smaller than the sum of its proper divisors (8240106).

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

5811990 is a wasteful number, since it uses less digits than its factorization.

5811990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 5811990 is about 2410.8069188552. The cubic root of 5811990 is about 179.7938999078.

The spelling of 5811990 in words is "five million, eight hundred eleven thousand, nine hundred ninety".