3897297115 has 16 divisors (see below), whose sum is σ = 4721750496. Its totient is φ = 3087884800.

The previous prime is 3897297109. The next prime is 3897297161. The reversal of 3897297115 is 5117927983.

It is not a de Polignac number, because 3897297115 - 2⁵ = 3897297083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1360785 + ... + 1363645.

It is an arithmetic number, because the mean of its divisors is an integer number (295109406).

Almost surely, 2^3897297115 is an apocalyptic number.

3897297115 is a deficient number, since it is larger than the sum of its proper divisors (824453381).

3897297115 is a wasteful number, since it uses less digits than its factorization.

3897297115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390.

The product of its digits is 952560, while the sum is 52.

The square root of 3897297115 is about 62428.3358339785. The cubic root of 3897297115 is about 1573.6971996334.

The spelling of 3897297115 in words is "three billion, eight hundred ninety-seven million, two hundred ninety-seven thousand, one hundred fifteen".