3959021198 has 16 divisors (see below), whose sum is σ = 6484932144. Its totient is φ = 1797740160.

The previous prime is 3959021173. The next prime is 3959021267. The reversal of 3959021198 is 8911209593.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68315 + ... + 112182.

It is an arithmetic number, because the mean of its divisors is an integer number (405308259).

Almost surely, 2^3959021198 is an apocalyptic number.

3959021198 is a deficient number, since it is larger than the sum of its proper divisors (2525910946).

3959021198 is a wasteful number, since it uses less digits than its factorization.

3959021198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181507.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 3959021198 is about 62920.7533171687. The cubic root of 3959021198 is about 1581.9616182219.

The spelling of 3959021198 in words is "three billion, nine hundred fifty-nine million, twenty-one thousand, one hundred ninety-eight".