3950488989 has 20 divisors (see below), whose sum is σ = 5903948160. Its totient is φ = 2632498920.

The previous prime is 3950488981. The next prime is 3950489003. The reversal of 3950488989 is 9898840593.

3950488989 is a `hidden beast` number, since 39 + 504 + 8 + 8 + 98 + 9 = 666.

It is not a de Polignac number, because 3950488989 - 2³ = 3950488981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3950488981) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 199444 + ... + 218354.

It is an arithmetic number, because the mean of its divisors is an integer number (295197408).

Almost surely, 2^3950488989 is an apocalyptic number.

It is an amenable number.

3950488989 is a deficient number, since it is larger than the sum of its proper divisors (1953459171).

3950488989 is a wasteful number, since it uses less digits than its factorization.

3950488989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21502 (or 21493 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The square root of 3950488989 is about 62852.9155171023. The cubic root of 3950488989 is about 1580.8243560476.

The spelling of 3950488989 in words is "three billion, nine hundred fifty million, four hundred eighty-eight thousand, nine hundred eighty-nine".