73239193 has 2 divisors, whose sum is σ = 73239194. Its totient is φ = 73239192.

The previous prime is 73239149. The next prime is 73239203. The reversal of 73239193 is 39193237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68608089 + 4631104 = 8283^2 + 2152^2 .

It is a cyclic number.

It is not a de Polignac number, because 73239193 - 2⁹ = 73238681 is a prime.

It is not a weakly prime, because it can be changed into another prime (73239293) 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 as a sum of consecutive naturals, namely, 36619596 + 36619597.

It is an arithmetic number, because the mean of its divisors is an integer number (36619597).

Almost surely, 2^73239193 is an apocalyptic number.

It is an amenable number.

73239193 is a deficient number, since it is larger than the sum of its proper divisors (1).

73239193 is an equidigital number, since it uses as much as digits as its factorization.

73239193 is an odious number, because the sum of its binary digits is odd.

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

The square root of 73239193 is about 8557.9900093421. The cubic root of 73239193 is about 418.3898917020.

The spelling of 73239193 in words is "seventy-three million, two hundred thirty-nine thousand, one hundred ninety-three".