73337681 has 2 divisors, whose sum is σ = 73337682. Its totient is φ = 73337680.

The previous prime is 73337659. The next prime is 73337699. The reversal of 73337681 is 18673337.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41075281 + 32262400 = 6409^2 + 5680^2 .

It is a cyclic number.

It is not a de Polignac number, because 73337681 - 2²² = 69143377 is a prime.

It is a super-2 number, since 2×73337681² = 10756830908915522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73337981) 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, 36668840 + 36668841.

It is an arithmetic number, because the mean of its divisors is an integer number (36668841).

Almost surely, 2^73337681 is an apocalyptic number.

It is an amenable number.

73337681 is a deficient number, since it is larger than the sum of its proper divisors (1).

73337681 is an equidigital number, since it uses as much as digits as its factorization.

73337681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 38.

The square root of 73337681 is about 8563.7422310576. The cubic root of 73337681 is about 418.5773501974.

The spelling of 73337681 in words is "seventy-three million, three hundred thirty-seven thousand, six hundred eighty-one".