3999500 has 48 divisors (see below), whose sum is σ = 9216480. Its totient is φ = 1512000.

The previous prime is 3999497. The next prime is 3999511. The reversal of 3999500 is 59993.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9290 + ... + 9710.

It is an arithmetic number, because the mean of its divisors is an integer number (192010).

Almost surely, 2^3999500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3999500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4608240).

3999500 is an abundant number, since it is smaller than the sum of its proper divisors (5216980).

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

3999500 is a wasteful number, since it uses less digits than its factorization.

3999500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 35.

The square root of 3999500 is about 1999.8749960935. The cubic root of 3999500 is about 158.7334907502.

The spelling of 3999500 in words is "three million, nine hundred ninety-nine thousand, five hundred".