3887889005 has 32 divisors (see below), whose sum is σ = 6264131328. Its totient is φ = 2237184000.

The previous prime is 3887888993. The next prime is 3887889017. The reversal of 3887889005 is 5009887883.

It is an interprime number because it is at equal distance from previous prime (3887888993) and next prime (3887889017).

It is not a de Polignac number, because 3887889005 - 2⁶ = 3887888941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383396 + ... + 393405.

It is an arithmetic number, because the mean of its divisors is an integer number (195754104).

Almost surely, 2^3887889005 is an apocalyptic number.

3887889005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3887889005 is a deficient number, since it is larger than the sum of its proper divisors (2376242323).

3887889005 is a wasteful number, since it uses less digits than its factorization.

3887889005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776837.

The product of its (nonzero) digits is 3870720, while the sum is 56.

The square root of 3887889005 is about 62352.9390245560. The cubic root of 3887889005 is about 1572.4298729472.

It can be divided in two parts, 388788 and 9005, that added together give a palindrome (397793).

The spelling of 3887889005 in words is "three billion, eight hundred eighty-seven million, eight hundred eighty-nine thousand, five".