3887854445 has 4 divisors (see below), whose sum is σ = 4665425340. Its totient is φ = 3110283552.

The previous prime is 3887854393. The next prime is 3887854483. The reversal of 3887854445 is 5444587883.

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 2841849481 + 1046004964 = 53309^2 + 32342^2 .

It is a cyclic number.

It is not a de Polignac number, because 3887854445 - 2²² = 3883660141 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388785440 + ... + 388785449.

It is an arithmetic number, because the mean of its divisors is an integer number (1166356335).

Almost surely, 2^3887854445 is an apocalyptic number.

It is an amenable number.

3887854445 is a deficient number, since it is larger than the sum of its proper divisors (777570895).

3887854445 is an equidigital number, since it uses as much as digits as its factorization.

3887854445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777570894.

The product of its digits is 17203200, while the sum is 56.

The square root of 3887854445 is about 62352.6618918551. The cubic root of 3887854445 is about 1572.4252137489.

The spelling of 3887854445 in words is "three billion, eight hundred eighty-seven million, eight hundred fifty-four thousand, four hundred forty-five".