3287985109 has 4 divisors (see below), whose sum is σ = 3318150220. Its totient is φ = 3257820000.

The previous prime is 3287985083. The next prime is 3287985133. The reversal of 3287985109 is 9015897823.

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 1481480100 + 1806505009 = 38490^2 + 42503^2 .

It is a cyclic number.

It is not a de Polignac number, because 3287985109 - 2⁹ = 3287984597 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 (3287985149) 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, 15082392 + ... + 15082609.

It is an arithmetic number, because the mean of its divisors is an integer number (829537555).

Almost surely, 2^3287985109 is an apocalyptic number.

It is an amenable number.

3287985109 is a deficient number, since it is larger than the sum of its proper divisors (30165111).

3287985109 is a wasteful number, since it uses less digits than its factorization.

3287985109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30165110.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 3287985109 is about 57340.9549013617. The cubic root of 3287985109 is about 1486.9965035004.

The spelling of 3287985109 in words is "three billion, two hundred eighty-seven million, nine hundred eighty-five thousand, one hundred nine".