3898718131 has 24 divisors (see below), whose sum is σ = 5055583232. Its totient is φ = 2939943600.

The previous prime is 3898718111. The next prime is 3898718147. The reversal of 3898718131 is 1318178983.

It is not a de Polignac number, because 3898718131 - 2¹¹ = 3898716083 is a prime.

It is a super-2 number, since 2×3898718131² = 30400006129976266322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3898718111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47985 + ... + 100498.

Almost surely, 2^3898718131 is an apocalyptic number.

3898718131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3898718131 is a deficient number, since it is larger than the sum of its proper divisors (1156865101).

3898718131 is a wasteful number, since it uses less digits than its factorization.

3898718131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148543 (or 148532 counting only the distinct ones).

The product of its digits is 290304, while the sum is 49.

The square root of 3898718131 is about 62439.7159746903. The cubic root of 3898718131 is about 1573.8884413323. Note that the first 3 decimals are identical.

The spelling of 3898718131 in words is "three billion, eight hundred ninety-eight million, seven hundred eighteen thousand, one hundred thirty-one".