3987423602 has 6 divisors (see below), whose sum is σ = 5981269359. Its totient is φ = 1993667150.

The previous prime is 3987423551. The next prime is 3987423617. The reversal of 3987423602 is 2063247893.

It can be written as a sum of positive squares in only one way, i.e., 1993711801 + 1993711801 = 44651^2 + 44651^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=44651.

It is a Duffinian 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 in 2 ways as a sum of consecutive naturals, for example, 66977 + ... + 111627.

Almost surely, 2^3987423602 is an apocalyptic number.

3987423602 is a deficient number, since it is larger than the sum of its proper divisors (1993845757).

3987423602 is an frugal number, since it uses more digits than its factorization.

3987423602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89304 (or 44653 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 3987423602 is about 63146.0497735211. The cubic root of 3987423602 is about 1585.7356564057.

The spelling of 3987423602 in words is "three billion, nine hundred eighty-seven million, four hundred twenty-three thousand, six hundred two".