97320389 has 4 divisors (see below), whose sum is σ = 97397760. Its totient is φ = 97243020.

The previous prime is 97320373. The next prime is 97320401. The reversal of 97320389 is 98302379.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97320389 - 2⁴ = 97320373 is a prime.

It is a super-2 number, since 2×97320389² = 18942516230222642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97320319) 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 3 ways as a sum of consecutive naturals, for example, 36767 + ... + 39324.

It is an arithmetic number, because the mean of its divisors is an integer number (24349440).

Almost surely, 2^97320389 is an apocalyptic number.

It is an amenable number.

97320389 is a deficient number, since it is larger than the sum of its proper divisors (77371).

97320389 is a wasteful number, since it uses less digits than its factorization.

97320389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77370.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 97320389 is about 9865.1096800796. The cubic root of 97320389 is about 459.9754066877.

The spelling of 97320389 in words is "ninety-seven million, three hundred twenty thousand, three hundred eighty-nine".