3988172895 has 32 divisors (see below), whose sum is σ = 7304908800. Its totient is φ = 1820102400.

The previous prime is 3988172861. The next prime is 3988172897. The reversal of 3988172895 is 5982718893.

It is not a de Polignac number, because 3988172895 - 2⁶ = 3988172831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988172897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31506 + ... + 94704.

It is an arithmetic number, because the mean of its divisors is an integer number (228278400).

Almost surely, 2^3988172895 is an apocalyptic number.

3988172895 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3988172895 is a deficient number, since it is larger than the sum of its proper divisors (3316735905).

3988172895 is a wasteful number, since it uses less digits than its factorization.

3988172895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63815.

The product of its digits is 8709120, while the sum is 60.

The square root of 3988172895 is about 63151.9825104486. The cubic root of 3988172895 is about 1585.8349775321.

The spelling of 3988172895 in words is "three billion, nine hundred eighty-eight million, one hundred seventy-two thousand, eight hundred ninety-five".