97321393 has 4 divisors (see below), whose sum is σ = 104807668. Its totient is φ = 89835120.

The previous prime is 97321387. The next prime is 97321397. The reversal of 97321393 is 39312379.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43401744 + 53919649 = 6588^2 + 7343^2 .

It is a cyclic number.

It is not a de Polignac number, because 97321393 - 2¹³ = 97313201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97321397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3743118 + ... + 3743143.

It is an arithmetic number, because the mean of its divisors is an integer number (26201917).

Almost surely, 2^97321393 is an apocalyptic number.

It is an amenable number.

97321393 is a deficient number, since it is larger than the sum of its proper divisors (7486275).

97321393 is a wasteful number, since it uses less digits than its factorization.

97321393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7486274.

The product of its digits is 30618, while the sum is 37.

The square root of 97321393 is about 9865.1605663567. The cubic root of 97321393 is about 459.9769884519.

It can be divided in two parts, 973 and 21393, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 97321393 in words is "ninety-seven million, three hundred twenty-one thousand, three hundred ninety-three".