5438391 has 8 divisors (see below), whose sum is σ = 8287104. Its totient is φ = 3107640.

The previous prime is 5438369. The next prime is 5438401. The reversal of 5438391 is 1938345.

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

It is not a de Polignac number, because 5438391 - 2⁵ = 5438359 is a prime.

5438391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5438311) 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, 129465 + ... + 129506.

It is an arithmetic number, because the mean of its divisors is an integer number (1035888).

Almost surely, 2^5438391 is an apocalyptic number.

5438391 is a deficient number, since it is larger than the sum of its proper divisors (2848713).

5438391 is a wasteful number, since it uses less digits than its factorization.

5438391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258981.

The product of its digits is 12960, while the sum is 33.

The square root of 5438391 is about 2332.0358059001. The cubic root of 5438391 is about 175.8558457183.

The spelling of 5438391 in words is "five million, four hundred thirty-eight thousand, three hundred ninety-one".