3989512 has 8 divisors (see below), whose sum is σ = 7480350. Its totient is φ = 1994752.

The previous prime is 3989477. The next prime is 3989519. The reversal of 3989512 is 2159893.

It can be written as a sum of positive squares in only one way, i.e., 3818116 + 171396 = 1954^2 + 414^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3989519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249337 + ... + 249352.

Almost surely, 2^3989512 is an apocalyptic number.

It is an amenable number.

3989512 is a deficient number, since it is larger than the sum of its proper divisors (3490838).

3989512 is a wasteful number, since it uses less digits than its factorization.

3989512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498695 (or 498691 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 3989512 is about 1997.3762790221. The cubic root of 3989512 is about 158.6012449102.

The spelling of 3989512 in words is "three million, nine hundred eighty-nine thousand, five hundred twelve".