97816 has 8 divisors (see below), whose sum is σ = 183420. Its totient is φ = 48904.

The previous prime is 97813. The next prime is 97829. The reversal of 97816 is 61879.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106 + ... + 6121.

2⁹⁷⁸¹⁶ is an apocalyptic number.

It is an amenable number.

97816 is a deficient number, since it is larger than the sum of its proper divisors (85604).

97816 is a wasteful number, since it uses less digits than its factorization.

97816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12233 (or 12229 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 97816 is about 312.7554955552. The cubic root of 97816 is about 46.0754904120.

Subtracting from 97816 its reverse (61879), we obtain a cube (35937 = 33³).

The spelling of 97816 in words is "ninety-seven thousand, eight hundred sixteen".