73416643 has 2 divisors, whose sum is σ = 73416644. Its totient is φ = 73416642.

The previous prime is 73416641. The next prime is 73416683. The reversal of 73416643 is 34661437.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73416643 - 2¹ = 73416641 is a prime.

Together with 73416641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 73416599 and 73416608.

It is not a weakly prime, because it can be changed into another prime (73416641) 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, 36708321 + 36708322.

It is an arithmetic number, because the mean of its divisors is an integer number (36708322).

Almost surely, 2^73416643 is an apocalyptic number.

73416643 is a deficient number, since it is larger than the sum of its proper divisors (1).

73416643 is an equidigital number, since it uses as much as digits as its factorization.

73416643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 34.

The square root of 73416643 is about 8568.3512416334. The cubic root of 73416643 is about 418.7275224290.

The spelling of 73416643 in words is "seventy-three million, four hundred sixteen thousand, six hundred forty-three".