7963867387 has 8 divisors (see below), whose sum is σ = 9102484736. Its totient is φ = 6825480552.

The previous prime is 7963867381. The next prime is 7963867421. The reversal of 7963867387 is 7837683697.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7963867387 - 2²³ = 7955478779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7963867381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24148 + ... + 128494.

It is an arithmetic number, because the mean of its divisors is an integer number (1137810592).

Almost surely, 2^7963867387 is an apocalyptic number.

7963867387 is a deficient number, since it is larger than the sum of its proper divisors (1138617349).

7963867387 is a wasteful number, since it uses less digits than its factorization.

7963867387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115257.

The product of its digits is 64012032, while the sum is 64.

The square root of 7963867387 is about 89240.5030633512. The cubic root of 7963867387 is about 1996.9844042932.

The spelling of 7963867387 in words is "seven billion, nine hundred sixty-three million, eight hundred sixty-seven thousand, three hundred eighty-seven".