5279991 has 8 divisors (see below), whose sum is σ = 7056000. Its totient is φ = 3511992.

The previous prime is 5279959. The next prime is 5279993. The reversal of 5279991 is 1999725.

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

It is not a de Polignac number, because 5279991 - 2⁵ = 5279959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5279993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241 + ... + 3258.

It is an arithmetic number, because the mean of its divisors is an integer number (882000).

Almost surely, 2^5279991 is an apocalyptic number.

5279991 is a deficient number, since it is larger than the sum of its proper divisors (1776009).

5279991 is a wasteful number, since it uses less digits than its factorization.

5279991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005.

The product of its digits is 51030, while the sum is 42.

The square root of 5279991 is about 2297.8231002407. The cubic root of 5279991 is about 174.1316548849.

The spelling of 5279991 in words is "five million, two hundred seventy-nine thousand, nine hundred ninety-one".