1986712704 has 64 divisors (see below), whose sum is σ = 5863572000. Its totient is φ = 662236416.

The previous prime is 1986712631. The next prime is 1986712727. The reversal of 1986712704 is 4072176891.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1986712704.

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, 283974 + ... + 290885.

Almost surely, 2^1986712704 is an apocalyptic number.

It is an amenable number.

1986712704 is an abundant number, since it is smaller than the sum of its proper divisors (3876859296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1986712704 is an equidigital number, since it uses as much as digits as its factorization.

1986712704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574882 (or 574864 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1986712704 is about 44572.5555022370. Note that the first 4 decimals coincide. The cubic root of 1986712704 is about 1257.1246907253.

The spelling of 1986712704 in words is "one billion, nine hundred eighty-six million, seven hundred twelve thousand, seven hundred four".