97432321 has 16 divisors (see below), whose sum is σ = 118181376. Its totient is φ = 78414336.

The previous prime is 97432319. The next prime is 97432327. The reversal of 97432321 is 12323479.

It is not a de Polignac number, because 97432321 - 2¹ = 97432319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97432327) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 72760 + ... + 74086.

It is an arithmetic number, because the mean of its divisors is an integer number (7386336).

Almost surely, 2^97432321 is an apocalyptic number.

It is an amenable number.

97432321 is a deficient number, since it is larger than the sum of its proper divisors (20749055).

97432321 is a wasteful number, since it uses less digits than its factorization.

97432321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968.

The product of its digits is 9072, while the sum is 31.

The square root of 97432321 is about 9870.7811747602. The cubic root of 97432321 is about 460.1516843813.

The spelling of 97432321 in words is "ninety-seven million, four hundred thirty-two thousand, three hundred twenty-one".