987876766 has 32 divisors (see below), whose sum is σ = 1679616000. Its totient is φ = 432934272.

The previous prime is 987876763. The next prime is 987876767. The reversal of 987876766 is 667678789.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 987876698 and 987876707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987876763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25155 + ... + 51073.

It is an arithmetic number, because the mean of its divisors is an integer number (52488000).

Almost surely, 2^987876766 is an apocalyptic number.

987876766 is a deficient number, since it is larger than the sum of its proper divisors (691739234).

987876766 is a wasteful number, since it uses less digits than its factorization.

987876766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26016.

The product of its digits is 42674688, while the sum is 64.

The square root of 987876766 is about 31430.5069319602. The cubic root of 987876766 is about 995.9424808049.

The spelling of 987876766 in words is "nine hundred eighty-seven million, eight hundred seventy-six thousand, seven hundred sixty-six".