73660361 has 2 divisors, whose sum is σ = 73660362. Its totient is φ = 73660360.

The previous prime is 73660357. The next prime is 73660373. The reversal of 73660361 is 16306637.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44023225 + 29637136 = 6635^2 + 5444^2 .

It is a cyclic number.

It is not a de Polignac number, because 73660361 - 2² = 73660357 is a prime.

It is not a weakly prime, because it can be changed into another prime (73660331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36830180 + 36830181.

It is an arithmetic number, because the mean of its divisors is an integer number (36830181).

Almost surely, 2^73660361 is an apocalyptic number.

It is an amenable number.

73660361 is a deficient number, since it is larger than the sum of its proper divisors (1).

73660361 is an equidigital number, since it uses as much as digits as its factorization.

73660361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 73660361 is about 8582.5614474934. The cubic root of 73660361 is about 419.1903544370.

Adding to 73660361 its reverse (16306637), we get a palindrome (89966998).

The spelling of 73660361 in words is "seventy-three million, six hundred sixty thousand, three hundred sixty-one".