73455233 has 2 divisors, whose sum is σ = 73455234. Its totient is φ = 73455232.

The previous prime is 73455229. The next prime is 73455241. The reversal of 73455233 is 33255437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72471169 + 984064 = 8513^2 + 992^2 .

It is an emirp because it is prime and its reverse (33255437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73455233 - 2² = 73455229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73455233.

It is not a weakly prime, because it can be changed into another prime (73455253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36727616 + 36727617.

It is an arithmetic number, because the mean of its divisors is an integer number (36727617).

Almost surely, 2^73455233 is an apocalyptic number.

It is an amenable number.

73455233 is a deficient number, since it is larger than the sum of its proper divisors (1).

73455233 is an equidigital number, since it uses as much as digits as its factorization.

73455233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 32.

The square root of 73455233 is about 8570.6028376072. The cubic root of 73455233 is about 418.8008748466.

The spelling of 73455233 in words is "seventy-three million, four hundred fifty-five thousand, two hundred thirty-three".