987707986 has 8 divisors (see below), whose sum is σ = 1489319424. Its totient is φ = 491268180.

The previous prime is 987707983. The next prime is 987707993. The reversal of 987707986 is 689707789.

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

It is not an unprimeable number, because it can be changed into a prime (987707983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292430 + ... + 1293193.

It is an arithmetic number, because the mean of its divisors is an integer number (186164928).

Almost surely, 2^987707986 is an apocalyptic number.

987707986 is a deficient number, since it is larger than the sum of its proper divisors (501611438).

987707986 is a wasteful number, since it uses less digits than its factorization.

987707986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585816.

The product of its (nonzero) digits is 10668672, while the sum is 61.

The square root of 987707986 is about 31427.8218462559. The cubic root of 987707986 is about 995.8857582285.

The spelling of 987707986 in words is "nine hundred eighty-seven million, seven hundred seven thousand, nine hundred eighty-six".