3857178897 has 24 divisors (see below), whose sum is σ = 6545517888. Its totient is φ = 2157861600.

The previous prime is 3857178877. The next prime is 3857178911. The reversal of 3857178897 is 7988717583.

3857178897 is a `hidden beast` number, since 385 + 7 + 178 + 89 + 7 = 666.

It is not a de Polignac number, because 3857178897 - 2¹⁴ = 3857162513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3857178877) 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 23 ways as a sum of consecutive naturals, for example, 1497229 + ... + 1499802.

It is an arithmetic number, because the mean of its divisors is an integer number (272729912).

Almost surely, 2^3857178897 is an apocalyptic number.

It is an amenable number.

3857178897 is a deficient number, since it is larger than the sum of its proper divisors (2688338991).

3857178897 is a wasteful number, since it uses less digits than its factorization.

3857178897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997061 (or 2997058 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 63.

The square root of 3857178897 is about 62106.1904885495. The cubic root of 3857178897 is about 1568.2787601850.

The spelling of 3857178897 in words is "three billion, eight hundred fifty-seven million, one hundred seventy-eight thousand, eight hundred ninety-seven".