3968888692 has 6 divisors (see below), whose sum is σ = 6945555218. Its totient is φ = 1984444344.

The previous prime is 3968888687. The next prime is 3968888743. The reversal of 3968888692 is 2968888693.

It can be written as a sum of positive squares in only one way, i.e., 3308090256 + 660798436 = 57516^2 + 25706^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496111083 + ... + 496111090.

Almost surely, 2^3968888692 is an apocalyptic number.

It is an amenable number.

3968888692 is a deficient number, since it is larger than the sum of its proper divisors (2976666526).

3968888692 is a wasteful number, since it uses less digits than its factorization.

3968888692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992222177 (or 992222175 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 67.

The square root of 3968888692 is about 62999.1165969809. The cubic root of 3968888692 is about 1583.2748254601.

Subtracting from 3968888692 its reverse (2968888693), we obtain a palindrome (999999999).

The spelling of 3968888692 in words is "three billion, nine hundred sixty-eight million, eight hundred eighty-eight thousand, six hundred ninety-two".