5309643 has 4 divisors (see below), whose sum is σ = 7079528. Its totient is φ = 3539760.

The previous prime is 5309599. The next prime is 5309659. The reversal of 5309643 is 3469035.

It is a happy number.

5309643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 5309643 - 2⁸ = 5309387 is a prime.

It is a D-number.

It is a Duffinian number.

5309643 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5309643.

It is not an unprimeable number, because it can be changed into a prime (5309663) 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, 884938 + ... + 884943.

It is an arithmetic number, because the mean of its divisors is an integer number (1769882).

Almost surely, 2^5309643 is an apocalyptic number.

5309643 is a deficient number, since it is larger than the sum of its proper divisors (1769885).

5309643 is a wasteful number, since it uses less digits than its factorization.

5309643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769884.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 5309643 is about 2304.2662606565. The cubic root of 5309643 is about 174.4570163120.

The spelling of 5309643 in words is "five million, three hundred nine thousand, six hundred forty-three".