3291998985 has 24 divisors (see below), whose sum is σ = 6224871744. Its totient is φ = 1596120480.

The previous prime is 3291998951. The next prime is 3291998989. The reversal of 3291998985 is 5898991923.

3291998985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3291998985 - 2¹² = 3291994889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3291998989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3324757 + ... + 3325746.

It is an arithmetic number, because the mean of its divisors is an integer number (259369656).

Almost surely, 2^3291998985 is an apocalyptic number.

It is an amenable number.

3291998985 is a deficient number, since it is larger than the sum of its proper divisors (2932872759).

3291998985 is a wasteful number, since it uses less digits than its factorization.

3291998985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6650525 (or 6650522 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 63.

The square root of 3291998985 is about 57375.9443059546. The cubic root of 3291998985 is about 1487.6013513787.

The spelling of 3291998985 in words is "three billion, two hundred ninety-one million, nine hundred ninety-eight thousand, nine hundred eighty-five".