98555279 has 4 divisors (see below), whose sum is σ = 99742776. Its totient is φ = 97367784.

The previous prime is 98555251. The next prime is 98555291. The reversal of 98555279 is 97255589.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98555279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98555209) 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 in 3 ways as a sum of consecutive naturals, for example, 593624 + ... + 593789.

It is an arithmetic number, because the mean of its divisors is an integer number (24935694).

Almost surely, 2^98555279 is an apocalyptic number.

98555279 is a deficient number, since it is larger than the sum of its proper divisors (1187497).

98555279 is a wasteful number, since it uses less digits than its factorization.

98555279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187496.

The product of its digits is 1134000, while the sum is 50.

The square root of 98555279 is about 9927.5011458070. The cubic root of 98555279 is about 461.9127647114.

The spelling of 98555279 in words is "ninety-eight million, five hundred fifty-five thousand, two hundred seventy-nine".