73172339 has 2 divisors, whose sum is σ = 73172340. Its totient is φ = 73172338.

The previous prime is 73172303. The next prime is 73172357. The reversal of 73172339 is 93327137.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73172339 - 2¹² = 73168243 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 73172299 and 73172308.

It is not a weakly prime, because it can be changed into another prime (73172389) 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, 36586169 + 36586170.

It is an arithmetic number, because the mean of its divisors is an integer number (36586170).

Almost surely, 2^73172339 is an apocalyptic number.

73172339 is a deficient number, since it is larger than the sum of its proper divisors (1).

73172339 is an equidigital number, since it uses as much as digits as its factorization.

73172339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 35.

The square root of 73172339 is about 8554.0831770564. The cubic root of 73172339 is about 418.2625484413.

The spelling of 73172339 in words is "seventy-three million, one hundred seventy-two thousand, three hundred thirty-nine".