73723789 has 2 divisors, whose sum is σ = 73723790. Its totient is φ = 73723788.

The previous prime is 73723753. The next prime is 73723817. The reversal of 73723789 is 98732737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69438889 + 4284900 = 8333^2 + 2070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73723789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73726789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36861894 + 36861895.

It is an arithmetic number, because the mean of its divisors is an integer number (36861895).

Almost surely, 2^73723789 is an apocalyptic number.

It is an amenable number.

73723789 is a deficient number, since it is larger than the sum of its proper divisors (1).

73723789 is an equidigital number, since it uses as much as digits as its factorization.

73723789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 46.

The square root of 73723789 is about 8586.2558196224. The cubic root of 73723789 is about 419.3106397458.

The spelling of 73723789 in words is "seventy-three million, seven hundred twenty-three thousand, seven hundred eighty-nine".