97391273 has 6 divisors (see below), whose sum is σ = 113291946. Its totient is φ = 83478192.

The previous prime is 97391257. The next prime is 97391291. The reversal of 97391273 is 37219379.

It can be written as a sum of positive squares in only one way, i.e., 61905424 + 35485849 = 7868^2 + 5957^2 .

It is not a de Polignac number, because 97391273 - 2⁴ = 97391257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97391273.

It is not an unprimeable number, because it can be changed into a prime (97391873) 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 5 ways as a sum of consecutive naturals, for example, 993740 + ... + 993837.

It is an arithmetic number, because the mean of its divisors is an integer number (18881991).

Almost surely, 2^97391273 is an apocalyptic number.

It is an amenable number.

97391273 is a deficient number, since it is larger than the sum of its proper divisors (15900673).

97391273 is a wasteful number, since it uses less digits than its factorization.

97391273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987591 (or 1987584 counting only the distinct ones).

The product of its digits is 71442, while the sum is 41.

The square root of 97391273 is about 9868.7016876588. The cubic root of 97391273 is about 460.0870550424.

The spelling of 97391273 in words is "ninety-seven million, three hundred ninety-one thousand, two hundred seventy-three".