3309437493 has 10 divisors (see below), whose sum is σ = 4943727734. Its totient is φ = 2206291608.

The previous prime is 3309437479. The next prime is 3309437513. The reversal of 3309437493 is 3947349033.

It can be written as a sum of positive squares in only one way, i.e., 2075531364 + 1233906129 = 45558^2 + 35127^2 .

It is not a de Polignac number, because 3309437493 - 2⁶ = 3309437429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3309437693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20428546 + ... + 20428707.

Almost surely, 2^3309437493 is an apocalyptic number.

It is an amenable number.

3309437493 is a deficient number, since it is larger than the sum of its proper divisors (1634290241).

3309437493 is an equidigital number, since it uses as much as digits as its factorization.

3309437493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40857265 (or 40857256 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 45.

The square root of 3309437493 is about 57527.7106532148. The cubic root of 3309437493 is about 1490.2234538676.

The spelling of 3309437493 in words is "three billion, three hundred nine million, four hundred thirty-seven thousand, four hundred ninety-three".