98664487 has 2 divisors, whose sum is σ = 98664488. Its totient is φ = 98664486.

The previous prime is 98664469. The next prime is 98664493. The reversal of 98664487 is 78446689.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98664487 - 2¹¹ = 98662439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98664407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49332243 + 49332244.

It is an arithmetic number, because the mean of its divisors is an integer number (49332244).

Almost surely, 2^98664487 is an apocalyptic number.

98664487 is a deficient number, since it is larger than the sum of its proper divisors (1).

98664487 is an equidigital number, since it uses as much as digits as its factorization.

98664487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 52.

The square root of 98664487 is about 9932.9998993255. Note that the first 3 decimals coincide. The cubic root of 98664487 is about 462.0833151843.

The spelling of 98664487 in words is "ninety-eight million, six hundred sixty-four thousand, four hundred eighty-seven".