3988067698 has 4 divisors (see below), whose sum is σ = 5982101550. Its totient is φ = 1994033848.

The previous prime is 3988067683. The next prime is 3988067701. The reversal of 3988067698 is 8967608893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3029731849 + 958335849 = 55043^2 + 30957^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997016923 + ... + 997016926.

Almost surely, 2^3988067698 is an apocalyptic number.

3988067698 is a deficient number, since it is larger than the sum of its proper divisors (1994033852).

3988067698 is a wasteful number, since it uses less digits than its factorization.

3988067698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994033851.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The square root of 3988067698 is about 63151.1496174060. The cubic root of 3988067698 is about 1585.8210340920.

The spelling of 3988067698 in words is "three billion, nine hundred eighty-eight million, sixty-seven thousand, six hundred ninety-eight".