73649227 has 2 divisors, whose sum is σ = 73649228. Its totient is φ = 73649226.

The previous prime is 73649221. The next prime is 73649237. The reversal of 73649227 is 72294637.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73649227 - 2²³ = 65260619 is a prime.

It is equal to p_4319878 and since 73649227 and 4319878 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73649227.

It is not a weakly prime, because it can be changed into another prime (73649221) 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, 36824613 + 36824614.

It is an arithmetic number, because the mean of its divisors is an integer number (36824614).

Almost surely, 2^73649227 is an apocalyptic number.

73649227 is a deficient number, since it is larger than the sum of its proper divisors (1).

73649227 is an equidigital number, since it uses as much as digits as its factorization.

73649227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 40.

The square root of 73649227 is about 8581.9127821250. The cubic root of 73649227 is about 419.1692327169.

The spelling of 73649227 in words is "seventy-three million, six hundred forty-nine thousand, two hundred twenty-seven".