73189799 has 2 divisors, whose sum is σ = 73189800. Its totient is φ = 73189798.

The previous prime is 73189759. The next prime is 73189817. The reversal of 73189799 is 99798137.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73189799 - 2¹² = 73185703 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73189799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73189759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36594899 + 36594900.

It is an arithmetic number, because the mean of its divisors is an integer number (36594900).

Almost surely, 2^73189799 is an apocalyptic number.

73189799 is a deficient number, since it is larger than the sum of its proper divisors (1).

73189799 is an equidigital number, since it uses as much as digits as its factorization.

73189799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 857304, while the sum is 53.

The square root of 73189799 is about 8555.1036814290. The cubic root of 73189799 is about 418.2958136679.

The spelling of 73189799 in words is "seventy-three million, one hundred eighty-nine thousand, seven hundred ninety-nine".