73193489 has 2 divisors, whose sum is σ = 73193490. Its totient is φ = 73193488.

The previous prime is 73193459. The next prime is 73193501. The reversal of 73193489 is 98439137.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57456400 + 15737089 = 7580^2 + 3967^2 .

It is a cyclic number.

It is not a de Polignac number, because 73193489 - 2¹⁶ = 73127953 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 (73193459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36596744 + 36596745.

It is an arithmetic number, because the mean of its divisors is an integer number (36596745).

Almost surely, 2^73193489 is an apocalyptic number.

It is an amenable number.

73193489 is a deficient number, since it is larger than the sum of its proper divisors (1).

73193489 is an equidigital number, since it uses as much as digits as its factorization.

73193489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The square root of 73193489 is about 8555.3193394519. The cubic root of 73193489 is about 418.3028432705.

The spelling of 73193489 in words is "seventy-three million, one hundred ninety-three thousand, four hundred eighty-nine".