97381321 has 16 divisors (see below), whose sum is σ = 105912576. Its totient is φ = 89185536.

The previous prime is 97381313. The next prime is 97381331. The reversal of 97381321 is 12318379.

It is not a de Polignac number, because 97381321 - 2³ = 97381313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97381301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245095 + ... + 245491.

It is an arithmetic number, because the mean of its divisors is an integer number (6619536).

Almost surely, 2^97381321 is an apocalyptic number.

It is an amenable number.

97381321 is a deficient number, since it is larger than the sum of its proper divisors (8531255).

97381321 is a wasteful number, since it uses less digits than its factorization.

97381321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its digits is 9072, while the sum is 34.

The square root of 97381321 is about 9868.1974544493. The cubic root of 97381321 is about 460.0713830620.

The spelling of 97381321 in words is "ninety-seven million, three hundred eighty-one thousand, three hundred twenty-one".