5387391 has 20 divisors (see below), whose sum is σ = 8110872. Its totient is φ = 3563568.

The previous prime is 5387387. The next prime is 5387399. The reversal of 5387391 is 1937835.

It is not a de Polignac number, because 5387391 - 2² = 5387387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5387399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18241 + ... + 18533.

Almost surely, 2^5387391 is an apocalyptic number.

5387391 is a deficient number, since it is larger than the sum of its proper divisors (2723481).

5387391 is a wasteful number, since it uses less digits than its factorization.

5387391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 523 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 5387391 is about 2321.0753973105. The cubic root of 5387391 is about 175.3044062436.

It can be divided in two parts, 5387 and 391, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 5387391 in words is "five million, three hundred eighty-seven thousand, three hundred ninety-one".