3877896189 has 4 divisors (see below), whose sum is σ = 5170528256. Its totient is φ = 2585264124.

The previous prime is 3877896157. The next prime is 3877896193. The reversal of 3877896189 is 9816987783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3877896189 - 2⁵ = 3877896157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3877896109) 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, 646316029 + ... + 646316034.

It is an arithmetic number, because the mean of its divisors is an integer number (1292632064).

Almost surely, 2^3877896189 is an apocalyptic number.

It is an amenable number.

3877896189 is a deficient number, since it is larger than the sum of its proper divisors (1292632067).

3877896189 is a wasteful number, since it uses less digits than its factorization.

3877896189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292632066.

The product of its digits is 36578304, while the sum is 66.

The square root of 3877896189 is about 62272.7563947510. The cubic root of 3877896189 is about 1571.0815419547.

The spelling of 3877896189 in words is "three billion, eight hundred seventy-seven million, eight hundred ninety-six thousand, one hundred eighty-nine".