987876765 has 24 divisors (see below), whose sum is σ = 1716867360. Its totient is φ = 525468384.

The previous prime is 987876763. The next prime is 987876767. The reversal of 987876765 is 567678789.

987876765 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (987876763) and next prime (987876767).

It is not a de Polignac number, because 987876765 - 2¹ = 987876763 is a prime.

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

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 11907 + ... + 46016.

It is an arithmetic number, because the mean of its divisors is an integer number (71536140).

Almost surely, 2^987876765 is an apocalyptic number.

It is an amenable number.

987876765 is a deficient number, since it is larger than the sum of its proper divisors (728990595).

987876765 is a wasteful number, since it uses less digits than its factorization.

987876765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58313 (or 58310 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 63.

The square root of 987876765 is about 31430.5069160521. The cubic root of 987876765 is about 995.9424804689.

The spelling of 987876765 in words is "nine hundred eighty-seven million, eight hundred seventy-six thousand, seven hundred sixty-five".