99985573 has 2 divisors, whose sum is σ = 99985574. Its totient is φ = 99985572.

The previous prime is 99985559. The next prime is 99985579. The reversal of 99985573 is 37558999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78889924 + 21095649 = 8882^2 + 4593^2 .

It is an emirp because it is prime and its reverse (37558999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99985573 is a prime.

It is a super-2 number, since 2×99985573² = 19994229616276658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99985579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49992786 + 49992787.

It is an arithmetic number, because the mean of its divisors is an integer number (49992787).

Almost surely, 2^99985573 is an apocalyptic number.

It is an amenable number.

99985573 is a deficient number, since it is larger than the sum of its proper divisors (1).

99985573 is an equidigital number, since it uses as much as digits as its factorization.

99985573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3061800, while the sum is 55.

The square root of 99985573 is about 9999.2786239808. The cubic root of 99985573 is about 464.1365608871.

The spelling of 99985573 in words is "ninety-nine million, nine hundred eighty-five thousand, five hundred seventy-three".