5309785 has 8 divisors (see below), whose sum is σ = 6861960. Its totient is φ = 3921024.

The previous prime is 5309783. The next prime is 5309789. The reversal of 5309785 is 5879035.

It can be written as a sum of positive squares in 4 ways, for example, as 725904 + 4583881 = 852^2 + 2141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5309785 - 2¹ = 5309783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5309783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40780 + ... + 40909.

It is an arithmetic number, because the mean of its divisors is an integer number (857745).

Almost surely, 2^5309785 is an apocalyptic number.

It is an amenable number.

5309785 is a deficient number, since it is larger than the sum of its proper divisors (1552175).

5309785 is a wasteful number, since it uses less digits than its factorization.

5309785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81707.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 5309785 is about 2304.2970728619. The cubic root of 5309785 is about 174.4585715123.

The spelling of 5309785 in words is "five million, three hundred nine thousand, seven hundred eighty-five".