9987070 has 16 divisors (see below), whose sum is σ = 18045360. Its totient is φ = 3979584.

The previous prime is 9987031. The next prime is 9987071. The reversal of 9987070 is 707899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9987071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066 + ... + 4594.

It is an arithmetic number, because the mean of its divisors is an integer number (1127835).

Almost surely, 2^9987070 is an apocalyptic number.

9987070 is a deficient number, since it is larger than the sum of its proper divisors (8058290).

9987070 is a wasteful number, since it uses less digits than its factorization.

9987070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 9987070 is about 3160.2325863771. The cubic root of 9987070 is about 215.3505728183.

The spelling of 9987070 in words is "nine million, nine hundred eighty-seven thousand, seventy".