98664239 has 2 divisors, whose sum is σ = 98664240. Its totient is φ = 98664238.

The previous prime is 98664221. The next prime is 98664253. The reversal of 98664239 is 93246689.

It is a strong prime.

It is an emirp because it is prime and its reverse (93246689) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98664239 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 98664193 and 98664202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98664259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49332119 + 49332120.

It is an arithmetic number, because the mean of its divisors is an integer number (49332120).

Almost surely, 2^98664239 is an apocalyptic number.

98664239 is a deficient number, since it is larger than the sum of its proper divisors (1).

98664239 is an equidigital number, since it uses as much as digits as its factorization.

98664239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 47.

The square root of 98664239 is about 9932.9874156771. The cubic root of 98664239 is about 462.0829280246.

The spelling of 98664239 in words is "ninety-eight million, six hundred sixty-four thousand, two hundred thirty-nine".