97824085 has 4 divisors (see below), whose sum is σ = 117388908. Its totient is φ = 78259264.

The previous prime is 97824059. The next prime is 97824107. The reversal of 97824085 is 58042879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58042879 = 17 ⋅3414287.

It can be written as a sum of positive squares in 2 ways, for example, as 62504836 + 35319249 = 7906^2 + 5943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97824085 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9782404 + ... + 9782413.

It is an arithmetic number, because the mean of its divisors is an integer number (29347227).

Almost surely, 2^97824085 is an apocalyptic number.

It is an amenable number.

97824085 is a deficient number, since it is larger than the sum of its proper divisors (19564823).

97824085 is a wasteful number, since it uses less digits than its factorization.

97824085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19564822.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 97824085 is about 9890.6058965060. The cubic root of 97824085 is about 460.7675983644.

The spelling of 97824085 in words is "ninety-seven million, eight hundred twenty-four thousand, eighty-five".