3287997660 has 48 divisors (see below), whose sum is σ = 9606675456. Its totient is φ = 838677312.

The previous prime is 3287997649. The next prime is 3287997667. The reversal of 3287997660 is 667997823.

It is a happy number.

It is a super-2 number, since 2×3287997660² = 21621857224330951200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3287997660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3287997667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1189924 + ... + 1192683.

It is an arithmetic number, because the mean of its divisors is an integer number (200139072).

Almost surely, 2^3287997660 is an apocalyptic number.

3287997660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3287997660 is an abundant number, since it is smaller than the sum of its proper divisors (6318677796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3287997660 is a wasteful number, since it uses less digits than its factorization.

3287997660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382642 (or 2382640 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 57.

The square root of 3287997660 is about 57341.0643431041. The cubic root of 3287997660 is about 1486.9983955679.

The spelling of 3287997660 in words is "three billion, two hundred eighty-seven million, nine hundred ninety-seven thousand, six hundred sixty".