3887340557 has 4 divisors (see below), whose sum is σ = 3887601276. Its totient is φ = 3887079840.

The previous prime is 3887340553. The next prime is 3887340559. The reversal of 3887340557 is 7550437883.

It is a happy number.

3887340557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2786361796 + 1100978761 = 52786^2 + 33181^2 .

It is a cyclic number.

It is not a de Polignac number, because 3887340557 - 2² = 3887340553 is a prime.

It is a super-2 number, since 2×3887340557² = 30222833212194140498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887340551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106544 + ... + 138297.

It is an arithmetic number, because the mean of its divisors is an integer number (971900319).

Almost surely, 2^3887340557 is an apocalyptic number.

It is an amenable number.

3887340557 is a deficient number, since it is larger than the sum of its proper divisors (260719).

3887340557 is a wasteful number, since it uses less digits than its factorization.

3887340557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260718.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The square root of 3887340557 is about 62348.5409372184. The cubic root of 3887340557 is about 1572.3559308008.

The spelling of 3887340557 in words is "three billion, eight hundred eighty-seven million, three hundred forty thousand, five hundred fifty-seven".