3985934980 has 24 divisors (see below), whose sum is σ = 8512338240. Its totient is φ = 1567350240.

The previous prime is 3985934963. The next prime is 3985935011. The reversal of 3985934980 is 894395893.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1687776 + ... + 1690135.

It is an arithmetic number, because the mean of its divisors is an integer number (354680760).

Almost surely, 2^3985934980 is an apocalyptic number.

It is an amenable number.

3985934980 is an abundant number, since it is smaller than the sum of its proper divisors (4526403260).

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

3985934980 is a wasteful number, since it uses less digits than its factorization.

3985934980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377979 (or 3377977 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 58.

The square root of 3985934980 is about 63134.2615384072. The cubic root of 3985934980 is about 1585.5382979912.

The spelling of 3985934980 in words is "three billion, nine hundred eighty-five million, nine hundred thirty-four thousand, nine hundred eighty".