5238991 has 8 divisors (see below), whose sum is σ = 5437520. Its totient is φ = 5044032.

The previous prime is 5238979. The next prime is 5239007. The reversal of 5238991 is 1998325.

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

It is a cyclic number.

It is not a de Polignac number, because 5238991 - 2¹⁷ = 5107919 is a prime.

It is a d-powerful number, because it can be written as 5⁶ + 2¹⁰ + 3¹¹ + 8⁶ + 9² + 9⁷ + 1 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5238991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5238911) 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, 2305 + ... + 3973.

It is an arithmetic number, because the mean of its divisors is an integer number (679690).

Almost surely, 2^5238991 is an apocalyptic number.

5238991 is a deficient number, since it is larger than the sum of its proper divisors (198529).

5238991 is a wasteful number, since it uses less digits than its factorization.

5238991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785.

The product of its digits is 19440, while the sum is 37.

The square root of 5238991 is about 2288.8842259931. The cubic root of 5238991 is about 173.6797628571.

The spelling of 5238991 in words is "five million, two hundred thirty-eight thousand, nine hundred ninety-one".