3887297557 has 8 divisors (see below), whose sum is σ = 4566895200. Its totient is φ = 3262067760.

The previous prime is 3887297543. The next prime is 3887297563. The reversal of 3887297557 is 7557927883.

3887297557 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3887297557 - 2¹¹ = 3887295509 is a prime.

It is a super-2 number, since 2×3887297557² = 30222164593316336498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3887297495 and 3887297504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887297507) 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, 13591807 + ... + 13592092.

It is an arithmetic number, because the mean of its divisors is an integer number (570861900).

Almost surely, 2^3887297557 is an apocalyptic number.

It is an amenable number.

3887297557 is a deficient number, since it is larger than the sum of its proper divisors (679597643).

3887297557 is a wasteful number, since it uses less digits than its factorization.

3887297557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27183923.

The product of its digits is 29635200, while the sum is 61.

The square root of 3887297557 is about 62348.1961006090. The cubic root of 3887297557 is about 1572.3501332165.

The spelling of 3887297557 in words is "three billion, eight hundred eighty-seven million, two hundred ninety-seven thousand, five hundred fifty-seven".