3921617004 has 12 divisors (see below), whose sum is σ = 9150439704. Its totient is φ = 1307205664.

The previous prime is 3921616997. The next prime is 3921617009. The reversal of 3921617004 is 4007161293.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3921617009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163400697 + ... + 163400720.

It is an arithmetic number, because the mean of its divisors is an integer number (762536642).

Almost surely, 2^3921617004 is an apocalyptic number.

It is an amenable number.

3921617004 is an abundant number, since it is smaller than the sum of its proper divisors (5228822700).

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

3921617004 is a wasteful number, since it uses less digits than its factorization.

3921617004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326801424 (or 326801422 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 3921617004 is about 62622.8153630927. The cubic root of 3921617004 is about 1576.9638060707.

Adding to 3921617004 its reverse (4007161293), we get a palindrome (7928778297).

The spelling of 3921617004 in words is "three billion, nine hundred twenty-one million, six hundred seventeen thousand, four".