5780991 has 8 divisors (see below), whose sum is σ = 7916464. Its totient is φ = 3749760.

The previous prime is 5780987. The next prime is 5781007. The reversal of 5780991 is 1990875.

It is a happy number.

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

It is not a de Polignac number, because 5780991 - 2² = 5780987 is a prime.

It is a Duffinian number.

5780991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5780191) 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, 25930 + ... + 26151.

It is an arithmetic number, because the mean of its divisors is an integer number (989558).

Almost surely, 2^5780991 is an apocalyptic number.

5780991 is a deficient number, since it is larger than the sum of its proper divisors (2135473).

5780991 is a wasteful number, since it uses less digits than its factorization.

5780991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52121.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 5780991 is about 2404.3691480303. The cubic root of 5780991 is about 179.4736785814.

The spelling of 5780991 in words is "five million, seven hundred eighty thousand, nine hundred ninety-one".