3981933610 has 16 divisors (see below), whose sum is σ = 7169495976. Its totient is φ = 1592325568.

The previous prime is 3981933589. The next prime is 3981933623. The reversal of 3981933610 is 163391893.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2501300169 + 1480633441 = 50013^2 + 38479^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 17377 + ... + 90916.

Almost surely, 2^3981933610 is an apocalyptic number.

3981933610 is a deficient number, since it is larger than the sum of its proper divisors (3187562366).

3981933610 is a wasteful number, since it uses less digits than its factorization.

3981933610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111977.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 3981933610 is about 63102.5642109732. The cubic root of 3981933610 is about 1585.0075609905.

The spelling of 3981933610 in words is "three billion, nine hundred eighty-one million, nine hundred thirty-three thousand, six hundred ten".