3999902 has 8 divisors (see below), whose sum is σ = 6058416. Its totient is φ = 1980432.

The previous prime is 3999901. The next prime is 3999917. The reversal of 3999902 is 2099993.

3999902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3999902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9503 + ... + 9914.

It is an arithmetic number, because the mean of its divisors is an integer number (757302).

Almost surely, 2^3999902 is an apocalyptic number.

3999902 is a deficient number, since it is larger than the sum of its proper divisors (2058514).

3999902 is a wasteful number, since it uses less digits than its factorization.

3999902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19522.

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 3999902 is about 1999.9754998499. The cubic root of 3999902 is about 158.7388088087.

It can be divided in two parts, 399 and 9902, that added together give a palindrome (10301).

The spelling of 3999902 in words is "three million, nine hundred ninety-nine thousand, nine hundred two".