73636273 has 4 divisors (see below), whose sum is σ = 73657188. Its totient is φ = 73615360.

The previous prime is 73636259. The next prime is 73636291. The reversal of 73636273 is 37263637.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67371264 + 6265009 = 8208^2 + 2503^2 .

It is a cyclic number.

It is not a de Polignac number, because 73636273 - 2¹³ = 73628081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73636243) 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 in 3 ways as a sum of consecutive naturals, for example, 3736 + ... + 12697.

It is an arithmetic number, because the mean of its divisors is an integer number (18414297).

Almost surely, 2^73636273 is an apocalyptic number.

It is an amenable number.

73636273 is a deficient number, since it is larger than the sum of its proper divisors (20915).

73636273 is a wasteful number, since it uses less digits than its factorization.

73636273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20914.

The product of its digits is 95256, while the sum is 37.

The square root of 73636273 is about 8581.1580220854. The cubic root of 73636273 is about 419.1446556922.

The spelling of 73636273 in words is "seventy-three million, six hundred thirty-six thousand, two hundred seventy-three".