3328761985 has 4 divisors (see below), whose sum is σ = 3994514388. Its totient is φ = 2663009584.

The previous prime is 3328761983. The next prime is 3328761991. The reversal of 3328761985 is 5891678233.

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 1116094464 + 2212667521 = 33408^2 + 47039^2 .

It is a cyclic number.

It is not a de Polignac number, because 3328761985 - 2¹ = 3328761983 is a prime.

It is a super-2 number, since 2×3328761985² = 22161312705562280450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3328761983) 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, 332876194 + ... + 332876203.

It is an arithmetic number, because the mean of its divisors is an integer number (998628597).

Almost surely, 2^3328761985 is an apocalyptic number.

It is an amenable number.

3328761985 is a deficient number, since it is larger than the sum of its proper divisors (665752403).

3328761985 is an equidigital number, since it uses as much as digits as its factorization.

3328761985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665752402.

The product of its digits is 2177280, while the sum is 52.

The square root of 3328761985 is about 57695.4242986391. The cubic root of 3328761985 is about 1493.1184010473.

The spelling of 3328761985 in words is "three billion, three hundred twenty-eight million, seven hundred sixty-one thousand, nine hundred eighty-five".