9812087 has 2 divisors, whose sum is σ = 9812088. Its totient is φ = 9812086.

The previous prime is 9812081. The next prime is 9812123. The reversal of 9812087 is 7802189.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9812087 - 2¹² = 9807991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9812081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4906043 + 4906044.

It is an arithmetic number, because the mean of its divisors is an integer number (4906044).

Almost surely, 2^9812087 is an apocalyptic number.

9812087 is a deficient number, since it is larger than the sum of its proper divisors (1).

9812087 is an equidigital number, since it uses as much as digits as its factorization.

9812087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 9812087 is about 3132.4250988651. The cubic root of 9812087 is about 214.0854391422.

The spelling of 9812087 in words is "nine million, eight hundred twelve thousand, eighty-seven".