97663 has 4 divisors (see below), whose sum is σ = 98560. Its totient is φ = 96768.

The previous prime is 97651. The next prime is 97673. The reversal of 97663 is 36679.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36679 = 43 ⋅853.

It is a cyclic number.

It is not a de Polignac number, because 97663 - 2⁹ = 97151 is a prime.

It is a Duffinian number.

It is a plaindrome in base 5.

It is a nialpdrome in base 10.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97613) 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, 258 + ... + 511.

It is an arithmetic number, because the mean of its divisors is an integer number (24640).

2⁹⁷⁶⁶³ is an apocalyptic number.

97663 is a deficient number, since it is larger than the sum of its proper divisors (897).

97663 is a wasteful number, since it uses less digits than its factorization.

97663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896.

The product of its digits is 6804, while the sum is 31.

The square root of 97663 is about 312.5107998134. The cubic root of 97663 is about 46.0514547096.

The spelling of 97663 in words is "ninety-seven thousand, six hundred sixty-three".