97318663 has 4 divisors (see below), whose sum is σ = 104804728. Its totient is φ = 89832600.

The previous prime is 97318643. The next prime is 97318673. The reversal of 97318663 is 36681379.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36681379 = 7 ⋅5240197.

It is not a de Polignac number, because 97318663 - 2¹³ = 97310471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97318633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3743013 + ... + 3743038.

It is an arithmetic number, because the mean of its divisors is an integer number (26201182).

Almost surely, 2^97318663 is an apocalyptic number.

97318663 is a deficient number, since it is larger than the sum of its proper divisors (7486065).

97318663 is a wasteful number, since it uses less digits than its factorization.

97318663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7486064.

The product of its digits is 163296, while the sum is 43.

The square root of 97318663 is about 9865.0221996709. The cubic root of 97318663 is about 459.9726874143.

The spelling of 97318663 in words is "ninety-seven million, three hundred eighteen thousand, six hundred sixty-three".