3309885421 has 4 divisors (see below), whose sum is σ = 3331805344. Its totient is φ = 3287965500.

The previous prime is 3309885401. The next prime is 3309885473. The reversal of 3309885421 is 1245889033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3309885421 - 2¹³ = 3309877229 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 (3309885401) 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, 10959735 + ... + 10960036.

It is an arithmetic number, because the mean of its divisors is an integer number (832951336).

Almost surely, 2^3309885421 is an apocalyptic number.

It is an amenable number.

3309885421 is a deficient number, since it is larger than the sum of its proper divisors (21919923).

3309885421 is a wasteful number, since it uses less digits than its factorization.

3309885421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21919922.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 3309885421 is about 57531.6036713735. The cubic root of 3309885421 is about 1490.2906840942.

The spelling of 3309885421 in words is "three billion, three hundred nine million, eight hundred eighty-five thousand, four hundred twenty-one".