9708987 has 4 divisors (see below), whose sum is σ = 12945320. Its totient is φ = 6472656.

The previous prime is 9708977. The next prime is 9708991. The reversal of 9708987 is 7898079.

9708987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9708987 - 2⁴ = 9708971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9708917) 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, 1618162 + ... + 1618167.

It is an arithmetic number, because the mean of its divisors is an integer number (3236330).

Almost surely, 2^9708987 is an apocalyptic number.

9708987 is a deficient number, since it is larger than the sum of its proper divisors (3236333).

9708987 is a wasteful number, since it uses less digits than its factorization.

9708987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236332.

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 9708987 is about 3115.9247423518. The cubic root of 9708987 is about 213.3329668505.

The spelling of 9708987 in words is "nine million, seven hundred eight thousand, nine hundred eighty-seven".