3897435168 has 216 divisors, whose sum is σ = 12318772284. Its totient is φ = 1167851520.

The previous prime is 3897435137. The next prime is 3897435187. The reversal of 3897435168 is 8615347983.

3897435168 is a `hidden beast` number, since 3 + 89 + 7 + 43 + 516 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3832600464 + 64834704 = 61908^2 + 8052^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3379680 + ... + 3380832.

Almost surely, 2^3897435168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3897435168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6159386142).

3897435168 is an abundant number, since it is smaller than the sum of its proper divisors (8421337116).

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

3897435168 is a wasteful number, since it uses less digits than its factorization.

3897435168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288 (or 1266 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 3897435168 is about 62429.4415160027. The cubic root of 3897435168 is about 1573.7157809773.

The spelling of 3897435168 in words is "three billion, eight hundred ninety-seven million, four hundred thirty-five thousand, one hundred sixty-eight".