97216320 has 56 divisors (see below), whose sum is σ = 308664864. Its totient is φ = 25924096.

The previous prime is 97216309. The next prime is 97216409. The reversal of 97216320 is 2361279.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 49674 + ... + 51593.

Almost surely, 2^97216320 is an apocalyptic number.

It is an amenable number.

97216320 is an abundant number, since it is smaller than the sum of its proper divisors (211448544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97216320 is a wasteful number, since it uses less digits than its factorization.

97216320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101287 (or 101277 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 97216320 is about 9859.8336699967. The cubic root of 97216320 is about 459.8113908560.

Adding to 97216320 its reverse (2361279), we get a palindrome (99577599).

The spelling of 97216320 in words is "ninety-seven million, two hundred sixteen thousand, three hundred twenty".