73643233 has 2 divisors, whose sum is σ = 73643234. Its totient is φ = 73643232.

The previous prime is 73643179. The next prime is 73643243. The reversal of 73643233 is 33234637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57866449 + 15776784 = 7607^2 + 3972^2 .

It is a cyclic number.

It is not a de Polignac number, because 73643233 - 2¹⁷ = 73512161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73643195 and 73643204.

It is not a weakly prime, because it can be changed into another prime (73643243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36821616 + 36821617.

It is an arithmetic number, because the mean of its divisors is an integer number (36821617).

Almost surely, 2^73643233 is an apocalyptic number.

It is an amenable number.

73643233 is a deficient number, since it is larger than the sum of its proper divisors (1).

73643233 is an equidigital number, since it uses as much as digits as its factorization.

73643233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 31.

The square root of 73643233 is about 8581.5635521739. The cubic root of 73643233 is about 419.1578609363.

The spelling of 73643233 in words is "seventy-three million, six hundred forty-three thousand, two hundred thirty-three".