3986786344 has 8 divisors (see below), whose sum is σ = 7475224410. Its totient is φ = 1993393168.

The previous prime is 3986786329. The next prime is 3986786369. The reversal of 3986786344 is 4436876893.

It can be written as a sum of positive squares in only one way, i.e., 3313383844 + 673402500 = 57562^2 + 25950^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249174139 + ... + 249174154.

Almost surely, 2^3986786344 is an apocalyptic number.

It is an amenable number.

3986786344 is a deficient number, since it is larger than the sum of its proper divisors (3488438066).

3986786344 is a wasteful number, since it uses less digits than its factorization.

3986786344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498348299 (or 498348295 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 58.

The square root of 3986786344 is about 63141.0036663973. The cubic root of 3986786344 is about 1585.6511760770.

The spelling of 3986786344 in words is "three billion, nine hundred eighty-six million, seven hundred eighty-six thousand, three hundred forty-four".