98775679 has 2 divisors, whose sum is σ = 98775680. Its totient is φ = 98775678.

The previous prime is 98775667. The next prime is 98775689. The reversal of 98775679 is 97657789.

It is a strong prime.

It is an emirp because it is prime and its reverse (97657789) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98775679 is a prime.

It is a super-2 number, since 2×98775679² = 19513269523822082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98775689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49387839 + 49387840.

It is an arithmetic number, because the mean of its divisors is an integer number (49387840).

Almost surely, 2^98775679 is an apocalyptic number.

98775679 is a deficient number, since it is larger than the sum of its proper divisors (1).

98775679 is an equidigital number, since it uses as much as digits as its factorization.

98775679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6667920, while the sum is 58.

The square root of 98775679 is about 9938.5954239017. The cubic root of 98775679 is about 462.2568348244.

The spelling of 98775679 in words is "ninety-eight million, seven hundred seventy-five thousand, six hundred seventy-nine".