3280999505 has 16 divisors (see below), whose sum is σ = 4506374784. Its totient is φ = 2246469120.

The previous prime is 3280999487. The next prime is 3280999523. The reversal of 3280999505 is 5059990823.

It is an interprime number because it is at equal distance from previous prime (3280999487) and next prime (3280999523).

It is not a de Polignac number, because 3280999505 - 2¹⁰ = 3280998481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 46091 + ... + 93200.

It is an arithmetic number, because the mean of its divisors is an integer number (281648424).

Almost surely, 2^3280999505 is an apocalyptic number.

3280999505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3280999505 is a deficient number, since it is larger than the sum of its proper divisors (1225375279).

3280999505 is a wasteful number, since it uses less digits than its factorization.

3280999505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139976.

The product of its (nonzero) digits is 874800, while the sum is 50.

The square root of 3280999505 is about 57280.0096455997. The cubic root of 3280999505 is about 1485.9426733179.

The spelling of 3280999505 in words is "three billion, two hundred eighty million, nine hundred ninety-nine thousand, five hundred five".