3985902 has 32 divisors (see below), whose sum is σ = 8924160. Its totient is φ = 1318680.

The previous prime is 3985889. The next prime is 3985903. The reversal of 3985902 is 2095893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11877 + ... + 12207.

It is an arithmetic number, because the mean of its divisors is an integer number (278880).

Almost surely, 2^3985902 is an apocalyptic number.

3985902 is an abundant number, since it is smaller than the sum of its proper divisors (4938258).

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

3985902 is a wasteful number, since it uses less digits than its factorization.

3985902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 3985902 is about 1996.4723889901. The cubic root of 3985902 is about 158.5533925015.

The spelling of 3985902 in words is "three million, nine hundred eighty-five thousand, nine hundred two".