99987067 has 2 divisors, whose sum is σ = 99987068. Its totient is φ = 99987066.

The previous prime is 99987037. The next prime is 99987089. The reversal of 99987067 is 76078999.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99987067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99986999 and 99987017.

It is not a weakly prime, because it can be changed into another prime (99987037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49993533 + 49993534.

It is an arithmetic number, because the mean of its divisors is an integer number (49993534).

Almost surely, 2^99987067 is an apocalyptic number.

99987067 is a deficient number, since it is larger than the sum of its proper divisors (1).

99987067 is an equidigital number, since it uses as much as digits as its factorization.

99987067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1714608, while the sum is 55.

The square root of 99987067 is about 9999.3533290908. The cubic root of 99987067 is about 464.1388726091.

The spelling of 99987067 in words is "ninety-nine million, nine hundred eighty-seven thousand, sixty-seven".