9520987 has 4 divisors (see below), whose sum is σ = 10881136. Its totient is φ = 8160840.

The previous prime is 9520963. The next prime is 9521023. The reversal of 9520987 is 7890259.

9520987 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7890259 = 13 ⋅606943.

It is a cyclic number.

It is not a de Polignac number, because 9520987 - 2¹¹ = 9518939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9524987) 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, 680064 + ... + 680077.

It is an arithmetic number, because the mean of its divisors is an integer number (2720284).

Almost surely, 2^9520987 is an apocalyptic number.

9520987 is a deficient number, since it is larger than the sum of its proper divisors (1360149).

9520987 is a wasteful number, since it uses less digits than its factorization.

9520987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360148.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 9520987 is about 3085.6096642317. The cubic root of 9520987 is about 211.9470245586.

The spelling of 9520987 in words is "nine million, five hundred twenty thousand, nine hundred eighty-seven".