73489937 has 2 divisors, whose sum is σ = 73489938. Its totient is φ = 73489936.

The previous prime is 73489931. The next prime is 73489957. The reversal of 73489937 is 73998437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45144961 + 28344976 = 6719^2 + 5324^2 .

It is an emirp because it is prime and its reverse (73998437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73489937 - 2⁸ = 73489681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73489931) 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, 36744968 + 36744969.

It is an arithmetic number, because the mean of its divisors is an integer number (36744969).

Almost surely, 2^73489937 is an apocalyptic number.

It is an amenable number.

73489937 is a deficient number, since it is larger than the sum of its proper divisors (1).

73489937 is an equidigital number, since it uses as much as digits as its factorization.

73489937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 50.

The square root of 73489937 is about 8572.6271935737. The cubic root of 73489937 is about 418.8668187632.

The spelling of 73489937 in words is "seventy-three million, four hundred eighty-nine thousand, nine hundred thirty-seven".