3946988619 has 48 divisors (see below), whose sum is σ = 6761424384. Its totient is φ = 2171836800.

The previous prime is 3946988611. The next prime is 3946988621. The reversal of 3946988619 is 9168896493.

It is a happy number.

3946988619 is a `hidden beast` number, since 3 + 9 + 4 + 6 + 9 + 8 + 8 + 619 = 666.

It is not a de Polignac number, because 3946988619 - 2³ = 3946988611 is a prime.

It is a super-2 number, since 2×3946988619² = 31157438317031054322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (3946988611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182079 + ... + 202599.

It is an arithmetic number, because the mean of its divisors is an integer number (140863008).

Almost surely, 2^3946988619 is an apocalyptic number.

3946988619 is a deficient number, since it is larger than the sum of its proper divisors (2814435765).

3946988619 is a wasteful number, since it uses less digits than its factorization.

3946988619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20648 (or 20645 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The square root of 3946988619 is about 62825.0636211377. The cubic root of 3946988619 is about 1580.3573163722.

The spelling of 3946988619 in words is "three billion, nine hundred forty-six million, nine hundred eighty-eight thousand, six hundred nineteen".