4308985 has 4 divisors (see below), whose sum is σ = 5170788. Its totient is φ = 3447184.

The previous prime is 4308961. The next prime is 4308989. The reversal of 4308985 is 5898034.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1225449 + 3083536 = 1107^2 + 1756^2 .

It is a cyclic number.

It is not a de Polignac number, because 4308985 - 2¹¹ = 4306937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4308989) 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, 430894 + ... + 430903.

It is an arithmetic number, because the mean of its divisors is an integer number (1292697).

Almost surely, 2^4308985 is an apocalyptic number.

It is an amenable number.

4308985 is a deficient number, since it is larger than the sum of its proper divisors (861803).

4308985 is an equidigital number, since it uses as much as digits as its factorization.

4308985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861802.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 4308985 is about 2075.8094806605. The cubic root of 4308985 is about 162.7265164484.

The spelling of 4308985 in words is "four million, three hundred eight thousand, nine hundred eighty-five".