3887120057 has 8 divisors (see below), whose sum is σ = 4121224776. Its totient is φ = 3653620992.

The previous prime is 3887120021. The next prime is 3887120059. The reversal of 3887120057 is 7500217883.

It can be written as a sum of positive squares in 4 ways, for example, as 303421561 + 3583698496 = 17419^2 + 59864^2 .

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 3887120057 - 2⁸ = 3887119801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3887119996 and 3887120023.

It is not an unprimeable number, because it can be changed into a prime (3887120059) 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, 138158 + ... + 163895.

It is an arithmetic number, because the mean of its divisors is an integer number (515153097).

Almost surely, 2^3887120057 is an apocalyptic number.

It is an amenable number.

3887120057 is a deficient number, since it is larger than the sum of its proper divisors (234104719).

3887120057 is a wasteful number, since it uses less digits than its factorization.

3887120057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302827.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 3887120057 is about 62346.7726269773. The cubic root of 3887120057 is about 1572.3262008751.

The spelling of 3887120057 in words is "three billion, eight hundred eighty-seven million, one hundred twenty thousand, fifty-seven".