1287367716 has 12 divisors (see below), whose sum is σ = 3003858032. Its totient is φ = 429122568.

The previous prime is 1287367709. The next prime is 1287367727. The reversal of 1287367716 is 6177637821.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53640310 + ... + 53640333.

Almost surely, 2^1287367716 is an apocalyptic number.

It is an amenable number.

1287367716 is an abundant number, since it is smaller than the sum of its proper divisors (1716490316).

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

1287367716 is a wasteful number, since it uses less digits than its factorization.

1287367716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107280650 (or 107280648 counting only the distinct ones).

The product of its digits is 592704, while the sum is 48.

The square root of 1287367716 is about 35879.9068560664. The cubic root of 1287367716 is about 1087.8462975366.

The spelling of 1287367716 in words is "one billion, two hundred eighty-seven million, three hundred sixty-seven thousand, seven hundred sixteen".