73651673 has 2 divisors, whose sum is σ = 73651674. Its totient is φ = 73651672.

The previous prime is 73651661. The next prime is 73651709. The reversal of 73651673 is 37615637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50879689 + 22771984 = 7133^2 + 4772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73651673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (73651073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36825836 + 36825837.

It is an arithmetic number, because the mean of its divisors is an integer number (36825837).

Almost surely, 2^73651673 is an apocalyptic number.

It is an amenable number.

73651673 is a deficient number, since it is larger than the sum of its proper divisors (1).

73651673 is an equidigital number, since it uses as much as digits as its factorization.

73651673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 38.

The square root of 73651673 is about 8582.0552899641. The cubic root of 73651673 is about 419.1738730760.

The spelling of 73651673 in words is "seventy-three million, six hundred fifty-one thousand, six hundred seventy-three".