73195439 has 2 divisors, whose sum is σ = 73195440. Its totient is φ = 73195438.

The previous prime is 73195393. The next prime is 73195457. The reversal of 73195439 is 93459137.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73195439 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 73195396 and 73195405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73195939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36597719 + 36597720.

It is an arithmetic number, because the mean of its divisors is an integer number (36597720).

Almost surely, 2^73195439 is an apocalyptic number.

73195439 is a deficient number, since it is larger than the sum of its proper divisors (1).

73195439 is an equidigital number, since it uses as much as digits as its factorization.

73195439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 41.

The square root of 73195439 is about 8555.4333028784. The cubic root of 73195439 is about 418.3065580058.

The spelling of 73195439 in words is "seventy-three million, one hundred ninety-five thousand, four hundred thirty-nine".