5287639 has 18 divisors (see below), whose sum is σ = 6458784. Its totient is φ = 4311720.

The previous prime is 5287627. The next prime is 5287649. The reversal of 5287639 is 9367825.

It is not a de Polignac number, because 5287639 - 2¹⁹ = 4763351 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 (5287649) 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 17 ways as a sum of consecutive naturals, for example, 89592 + ... + 89650.

Almost surely, 2^5287639 is an apocalyptic number.

5287639 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

5287639 is a deficient number, since it is larger than the sum of its proper divisors (1171145).

5287639 is an equidigital number, since it uses as much as digits as its factorization.

5287639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 97 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 5287639 is about 2299.4866818488. The cubic root of 5287639 is about 174.2156901545.

The spelling of 5287639 in words is "five million, two hundred eighty-seven thousand, six hundred thirty-nine".