73063649 has 2 divisors, whose sum is σ = 73063650. Its totient is φ = 73063648.

The previous prime is 73063631. The next prime is 73063657. The reversal of 73063649 is 94636037.

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., 45427600 + 27636049 = 6740^2 + 5257^2 .

It is an emirp because it is prime and its reverse (94636037) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73063649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73063699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36531824 + 36531825.

It is an arithmetic number, because the mean of its divisors is an integer number (36531825).

Almost surely, 2^73063649 is an apocalyptic number.

It is an amenable number.

73063649 is a deficient number, since it is larger than the sum of its proper divisors (1).

73063649 is an equidigital number, since it uses as much as digits as its factorization.

73063649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 73063649 is about 8547.7277097484. The cubic root of 73063649 is about 418.0553504536.

The spelling of 73063649 in words is "seventy-three million, sixty-three thousand, six hundred forty-nine".