5807991 has 16 divisors (see below), whose sum is σ = 8895744. Its totient is φ = 3301824.

The previous prime is 5807981. The next prime is 5808007. The reversal of 5807991 is 1997085.

It is a happy number.

It is not a de Polignac number, because 5807991 - 2⁵ = 5807959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5807941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4300 + ... + 5486.

It is an arithmetic number, because the mean of its divisors is an integer number (555984).

Almost surely, 2^5807991 is an apocalyptic number.

5807991 is a deficient number, since it is larger than the sum of its proper divisors (3087753).

5807991 is a wasteful number, since it uses less digits than its factorization.

5807991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430.

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

The square root of 5807991 is about 2409.9773857860. The cubic root of 5807991 is about 179.7526540940.

The spelling of 5807991 in words is "five million, eight hundred seven thousand, nine hundred ninety-one".