9881087 has 2 divisors, whose sum is σ = 9881088. Its totient is φ = 9881086.

The previous prime is 9881051. The next prime is 9881101. The reversal of 9881087 is 7801889.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9881087 - 2⁶ = 9881023 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9881687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4940543 + 4940544.

It is an arithmetic number, because the mean of its divisors is an integer number (4940544).

Almost surely, 2^9881087 is an apocalyptic number.

9881087 is a deficient number, since it is larger than the sum of its proper divisors (1).

9881087 is an equidigital number, since it uses as much as digits as its factorization.

9881087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 9881087 is about 3143.4196347290. The cubic root of 9881087 is about 214.5860938931.

The spelling of 9881087 in words is "nine million, eight hundred eighty-one thousand, eighty-seven".