97296809 has 4 divisors (see below), whose sum is σ = 98629716. Its totient is φ = 95963904.

The previous prime is 97296709. The next prime is 97296811. The reversal of 97296809 is 90869279.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26265625 + 71031184 = 5125^2 + 8428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97296809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97296869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666344 + ... + 666489.

It is an arithmetic number, because the mean of its divisors is an integer number (24657429).

Almost surely, 2^97296809 is an apocalyptic number.

It is an amenable number.

97296809 is a deficient number, since it is larger than the sum of its proper divisors (1332907).

97296809 is a wasteful number, since it uses less digits than its factorization.

97296809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332906.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 97296809 is about 9863.9144866529. The cubic root of 97296809 is about 459.9382541571.

The spelling of 97296809 in words is "ninety-seven million, two hundred ninety-six thousand, eight hundred nine".