4093309 has 6 divisors (see below), whose sum is σ = 4499390. Its totient is φ = 3721080.

The previous prime is 4093307. The next prime is 4093339. The reversal of 4093309 is 9033904.

It can be written as a sum of positive squares in only one way, i.e., 3790809 + 302500 = 1947^2 + 550^2 .

It is not a de Polignac number, because 4093309 - 2¹ = 4093307 is a prime.

It is a Duffinian number.

4093309 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4093301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16794 + ... + 17035.

Almost surely, 2^4093309 is an apocalyptic number.

It is an amenable number.

4093309 is a deficient number, since it is larger than the sum of its proper divisors (406081).

4093309 is a wasteful number, since it uses less digits than its factorization.

4093309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33851 (or 33840 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 4093309 is about 2023.1927738107. The cubic root of 4093309 is about 159.9649532613.

The spelling of 4093309 in words is "four million, ninety-three thousand, three hundred nine".