3988718234 has 4 divisors (see below), whose sum is σ = 5983077354. Its totient is φ = 1994359116.

The previous prime is 3988718231. The next prime is 3988718249. The reversal of 3988718234 is 4328178893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4328178893 = 23 ⋅188181691.

It can be written as a sum of positive squares in only one way, i.e., 2216055625 + 1772662609 = 47075^2 + 42103^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3988718231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997179557 + ... + 997179560.

Almost surely, 2^3988718234 is an apocalyptic number.

3988718234 is a deficient number, since it is larger than the sum of its proper divisors (1994359120).

3988718234 is a wasteful number, since it uses less digits than its factorization.

3988718234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994359119.

The product of its digits is 2322432, while the sum is 53.

The square root of 3988718234 is about 63156.3000341217. The cubic root of 3988718234 is about 1585.9072560974.

The spelling of 3988718234 in words is "three billion, nine hundred eighty-eight million, seven hundred eighteen thousand, two hundred thirty-four".