3989650 has 24 divisors (see below), whose sum is σ = 8481600. Its totient is φ = 1367760.

The previous prime is 3989641. The next prime is 3989651. The reversal of 3989650 is 569893.

It is not an unprimeable number, because it can be changed into a prime (3989651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5350 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (353400).

Almost surely, 2^3989650 is an apocalyptic number.

3989650 is an abundant number, since it is smaller than the sum of its proper divisors (4491950).

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

3989650 is a wasteful number, since it uses less digits than its factorization.

3989650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11418 (or 11413 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 3989650 is about 1997.4108240420. The cubic root of 3989650 is about 158.6030735983.

The spelling of 3989650 in words is "three million, nine hundred eighty-nine thousand, six hundred fifty".