3921571002 has 16 divisors (see below), whose sum is σ = 7861865760. Its totient is φ = 1304069712.

The previous prime is 3921570997. The next prime is 3921571091. The reversal of 3921571002 is 2001751293.

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, 777433 + ... + 782460.

It is an arithmetic number, because the mean of its divisors is an integer number (491366610).

Almost surely, 2^3921571002 is an apocalyptic number.

3921571002 is an abundant number, since it is smaller than the sum of its proper divisors (3940294758).

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

3921571002 is a wasteful number, since it uses less digits than its factorization.

3921571002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560317.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 3921571002 is about 62622.4480677656. The cubic root of 3921571002 is about 1576.9576399260.

The spelling of 3921571002 in words is "three billion, nine hundred twenty-one million, five hundred seventy-one thousand, two".