3981335662 has 4 divisors (see below), whose sum is σ = 5972003496. Its totient is φ = 1990667830.

The previous prime is 3981335651. The next prime is 3981335663. The reversal of 3981335662 is 2665331893.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981335663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 995333914 + ... + 995333917.

It is an arithmetic number, because the mean of its divisors is an integer number (1493000874).

Almost surely, 2^3981335662 is an apocalyptic number.

3981335662 is a deficient number, since it is larger than the sum of its proper divisors (1990667834).

3981335662 is a wasteful number, since it uses less digits than its factorization.

3981335662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990667833.

The product of its digits is 699840, while the sum is 46.

The square root of 3981335662 is about 63097.8261273715. The cubic root of 3981335662 is about 1584.9282193408.

The spelling of 3981335662 in words is "three billion, nine hundred eighty-one million, three hundred thirty-five thousand, six hundred sixty-two".