73673273 has 2 divisors, whose sum is σ = 73673274. Its totient is φ = 73673272.

The previous prime is 73673239. The next prime is 73673293. The reversal of 73673273 is 37237637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72812089 + 861184 = 8533^2 + 928^2 .

It is an emirp because it is prime and its reverse (37237637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73673273 - 2²⁶ = 6564409 is a prime.

It is not a weakly prime, because it can be changed into another prime (73673293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36836636 + 36836637.

It is an arithmetic number, because the mean of its divisors is an integer number (36836637).

Almost surely, 2^73673273 is an apocalyptic number.

It is an amenable number.

73673273 is a deficient number, since it is larger than the sum of its proper divisors (1).

73673273 is an equidigital number, since it uses as much as digits as its factorization.

73673273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111132, while the sum is 38.

The square root of 73673273 is about 8583.3136375179. The cubic root of 73673273 is about 419.2148464413.

The spelling of 73673273 in words is "seventy-three million, six hundred seventy-three thousand, two hundred seventy-three".