73657663 has 2 divisors, whose sum is σ = 73657664. Its totient is φ = 73657662.

The previous prime is 73657637. The next prime is 73657673. The reversal of 73657663 is 36675637.

It is a strong prime.

It is an emirp because it is prime and its reverse (36675637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73657663 - 2⁵ = 73657631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73657613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36828831 + 36828832.

It is an arithmetic number, because the mean of its divisors is an integer number (36828832).

Almost surely, 2^73657663 is an apocalyptic number.

73657663 is a deficient number, since it is larger than the sum of its proper divisors (1).

73657663 is an equidigital number, since it uses as much as digits as its factorization.

73657663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 43.

The square root of 73657663 is about 8582.4042668707. The cubic root of 73657663 is about 419.1852363999.

The spelling of 73657663 in words is "seventy-three million, six hundred fifty-seven thousand, six hundred sixty-three".