3897188072 has 32 divisors (see below), whose sum is σ = 7356825000. Its totient is φ = 1935414528.

The previous prime is 3897188063. The next prime is 3897188077. The reversal of 3897188072 is 2708817983.

3897188072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3362376196 + 534811876 = 57986^2 + 23126^2 .

It is not an unprimeable number, because it can be changed into a prime (3897188077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748454 + ... + 753642.

Almost surely, 2^3897188072 is an apocalyptic number.

It is an amenable number.

3897188072 is a deficient number, since it is larger than the sum of its proper divisors (3459636928).

3897188072 is a wasteful number, since it uses less digits than its factorization.

3897188072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 5809 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 3897188072 is about 62427.4624824684. The cubic root of 3897188072 is about 1573.6825226013.

The spelling of 3897188072 in words is "three billion, eight hundred ninety-seven million, one hundred eighty-eight thousand, seventy-two".