73434817 has 2 divisors, whose sum is σ = 73434818. Its totient is φ = 73434816.

The previous prime is 73434811. The next prime is 73434827. The reversal of 73434817 is 71843437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73427761 + 7056 = 8569^2 + 84^2 .

It is an emirp because it is prime and its reverse (71843437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73434817 - 2²³ = 65046209 is a prime.

It is not a weakly prime, because it can be changed into another prime (73434811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36717408 + 36717409.

It is an arithmetic number, because the mean of its divisors is an integer number (36717409).

Almost surely, 2^73434817 is an apocalyptic number.

It is an amenable number.

73434817 is a deficient number, since it is larger than the sum of its proper divisors (1).

73434817 is an equidigital number, since it uses as much as digits as its factorization.

73434817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 37.

The square root of 73434817 is about 8569.4117067626. The cubic root of 73434817 is about 418.7620710265.

The spelling of 73434817 in words is "seventy-three million, four hundred thirty-four thousand, eight hundred seventeen".