987878767 has 8 divisors (see below), whose sum is σ = 1022782592. Its totient is φ = 953164800.

The previous prime is 987878741. The next prime is 987878779. The reversal of 987878767 is 767878789.

987878767 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987878767 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987878737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36834 + ... + 57727.

It is an arithmetic number, because the mean of its divisors is an integer number (127847824).

Almost surely, 2^987878767 is an apocalyptic number.

987878767 is a deficient number, since it is larger than the sum of its proper divisors (34903825).

987878767 is a wasteful number, since it uses less digits than its factorization.

987878767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94929.

The product of its digits is 66382848, while the sum is 67.

The square root of 987878767 is about 31430.5387640747. The cubic root of 987878767 is about 995.9431532503.

The spelling of 987878767 in words is "nine hundred eighty-seven million, eight hundred seventy-eight thousand, seven hundred sixty-seven".