73889611 has 2 divisors, whose sum is σ = 73889612. Its totient is φ = 73889610.

The previous prime is 73889581. The next prime is 73889617. The reversal of 73889611 is 11698837.

It is a strong prime.

It is an emirp because it is prime and its reverse (11698837) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73889611 - 2⁹ = 73889099 is a prime.

It is a super-2 number, since 2×73889611² = 10919349227462642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73889617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36944805 + 36944806.

It is an arithmetic number, because the mean of its divisors is an integer number (36944806).

Almost surely, 2^73889611 is an apocalyptic number.

73889611 is a deficient number, since it is larger than the sum of its proper divisors (1).

73889611 is an equidigital number, since it uses as much as digits as its factorization.

73889611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 43.

The square root of 73889611 is about 8595.9066421175. The cubic root of 73889611 is about 419.6247801540.

The spelling of 73889611 in words is "seventy-three million, eight hundred eighty-nine thousand, six hundred eleven".