5636739 has 4 divisors (see below), whose sum is σ = 7515656. Its totient is φ = 3757824.

The previous prime is 5636731. The next prime is 5636747. The reversal of 5636739 is 9376365.

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

It is an interprime number because it is at equal distance from previous prime (5636731) and next prime (5636747).

It is not a de Polignac number, because 5636739 - 2³ = 5636731 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5636697 and 5636706.

It is not an unprimeable number, because it can be changed into a prime (5636731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939454 + ... + 939459.

It is an arithmetic number, because the mean of its divisors is an integer number (1878914).

Almost surely, 2^5636739 is an apocalyptic number.

5636739 is a deficient number, since it is larger than the sum of its proper divisors (1878917).

5636739 is a wasteful number, since it uses less digits than its factorization.

5636739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878916.

The product of its digits is 102060, while the sum is 39.

The square root of 5636739 is about 2374.1817537838. The cubic root of 5636739 is about 177.9682959147.

The spelling of 5636739 in words is "five million, six hundred thirty-six thousand, seven hundred thirty-nine".