987039963 has 96 divisors (see below), whose sum is σ = 1863214080. Its totient is φ = 489265920.

The previous prime is 987039961. The next prime is 987039979. The reversal of 987039963 is 369930789.

It is not a de Polignac number, because 987039963 - 2¹ = 987039961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (987039961) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1148628 + ... + 1149486.

It is an arithmetic number, because the mean of its divisors is an integer number (19408480).

Almost surely, 2^987039963 is an apocalyptic number.

987039963 is a deficient number, since it is larger than the sum of its proper divisors (876174117).

987039963 is a wasteful number, since it uses less digits than its factorization.

987039963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 966 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 987039963 is about 31417.1921565247. The cubic root of 987039963 is about 995.6611896176.

The spelling of 987039963 in words is "nine hundred eighty-seven million, thirty-nine thousand, nine hundred sixty-three".