3309845 has 16 divisors (see below), whose sum is σ = 4952448. Its totient is φ = 2063040.

The previous prime is 3309833. The next prime is 3309847. The reversal of 3309845 is 5489033.

It is not a de Polignac number, because 3309845 - 2⁴ = 3309829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3309847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3914 + ... + 4683.

It is an arithmetic number, because the mean of its divisors is an integer number (309528).

Almost surely, 2^3309845 is an apocalyptic number.

3309845 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3309845 is a deficient number, since it is larger than the sum of its proper divisors (1642603).

3309845 is a wasteful number, since it uses less digits than its factorization.

3309845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8620.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 3309845 is about 1819.2979415148. The cubic root of 3309845 is about 149.0284617491.

The spelling of 3309845 in words is "three million, three hundred nine thousand, eight hundred forty-five".