3992901686 has 16 divisors (see below), whose sum is σ = 6143897088. Its totient is φ = 1945070400.

The previous prime is 3992901677. The next prime is 3992901691. The reversal of 3992901686 is 6861092993.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26891 + ... + 93321.

It is an arithmetic number, because the mean of its divisors is an integer number (383993568).

Almost surely, 2^3992901686 is an apocalyptic number.

3992901686 is a deficient number, since it is larger than the sum of its proper divisors (2150995402).

3992901686 is a wasteful number, since it uses less digits than its factorization.

3992901686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67207.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The square root of 3992901686 is about 63189.4111857359. The cubic root of 3992901686 is about 1586.4615067240.

The spelling of 3992901686 in words is "three billion, nine hundred ninety-two million, nine hundred one thousand, six hundred eighty-six".