73613663 has 2 divisors, whose sum is σ = 73613664. Its totient is φ = 73613662.

The previous prime is 73613647. The next prime is 73613669. The reversal of 73613663 is 36631637.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73613663 - 2⁴ = 73613647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73613669) 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, 36806831 + 36806832.

It is an arithmetic number, because the mean of its divisors is an integer number (36806832).

Almost surely, 2^73613663 is an apocalyptic number.

73613663 is a deficient number, since it is larger than the sum of its proper divisors (1).

73613663 is an equidigital number, since it uses as much as digits as its factorization.

73613663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 35.

The square root of 73613663 is about 8579.8404996830. The cubic root of 73613663 is about 419.1017518786.

The spelling of 73613663 in words is "seventy-three million, six hundred thirteen thousand, six hundred sixty-three".