98172559 has 2 divisors, whose sum is σ = 98172560. Its totient is φ = 98172558.

The previous prime is 98172553. The next prime is 98172577. The reversal of 98172559 is 95527189.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98172559 - 2¹⁷ = 98041487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98172553) 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, 49086279 + 49086280.

It is an arithmetic number, because the mean of its divisors is an integer number (49086280).

Almost surely, 2^98172559 is an apocalyptic number.

98172559 is a deficient number, since it is larger than the sum of its proper divisors (1).

98172559 is an equidigital number, since it uses as much as digits as its factorization.

98172559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 46.

The square root of 98172559 is about 9908.2066490359. The cubic root of 98172559 is about 461.3140733497.

The spelling of 98172559 in words is "ninety-eight million, one hundred seventy-two thousand, five hundred fifty-nine".