97816697 has 4 divisors (see below), whose sum is σ = 106709136. Its totient is φ = 88924260.

The previous prime is 97816679. The next prime is 97816699. The reversal of 97816697 is 79661879.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79661879 = 11 ⋅7241989.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97816697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97816699) 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, 4446203 + ... + 4446224.

It is an arithmetic number, because the mean of its divisors is an integer number (26677284).

Almost surely, 2^97816697 is an apocalyptic number.

It is an amenable number.

97816697 is a deficient number, since it is larger than the sum of its proper divisors (8892439).

97816697 is a wasteful number, since it uses less digits than its factorization.

97816697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892438.

The product of its digits is 1143072, while the sum is 53.

The square root of 97816697 is about 9890.2324037406. The cubic root of 97816697 is about 460.7559985056.

The spelling of 97816697 in words is "ninety-seven million, eight hundred sixteen thousand, six hundred ninety-seven".