73644113 has 2 divisors, whose sum is σ = 73644114. Its totient is φ = 73644112.

The previous prime is 73644101. The next prime is 73644143. The reversal of 73644113 is 31144637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60481729 + 13162384 = 7777^2 + 3628^2 .

It is a cyclic number.

It is not a de Polignac number, because 73644113 - 2¹⁶ = 73578577 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 (73644143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36822056 + 36822057.

It is an arithmetic number, because the mean of its divisors is an integer number (36822057).

Almost surely, 2^73644113 is an apocalyptic number.

It is an amenable number.

73644113 is a deficient number, since it is larger than the sum of its proper divisors (1).

73644113 is an equidigital number, since it uses as much as digits as its factorization.

73644113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 73644113 is about 8581.6148247285. The cubic root of 73644113 is about 419.1595305057.

The spelling of 73644113 in words is "seventy-three million, six hundred forty-four thousand, one hundred thirteen".