5287734391 has 4 divisors (see below), whose sum is σ = 5288628592. Its totient is φ = 5286840192.

The previous prime is 5287734359. The next prime is 5287734433. The reversal of 5287734391 is 1934377825.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5287734391 - 2⁵ = 5287734359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5287734311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438171 + ... + 450076.

It is an arithmetic number, because the mean of its divisors is an integer number (1322157148).

Almost surely, 2^5287734391 is an apocalyptic number.

5287734391 is a deficient number, since it is larger than the sum of its proper divisors (894201).

5287734391 is an equidigital number, since it uses as much as digits as its factorization.

5287734391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894200.

The product of its digits is 1270080, while the sum is 49.

The square root of 5287734391 is about 72716.8095490994. The cubic root of 5287734391 is about 1742.1673778712.

The spelling of 5287734391 in words is "five billion, two hundred eighty-seven million, seven hundred thirty-four thousand, three hundred ninety-one".