73320433 has 2 divisors, whose sum is σ = 73320434. Its totient is φ = 73320432.

The previous prime is 73320431. The next prime is 73320437. The reversal of 73320433 is 33402337.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65658609 + 7661824 = 8103^2 + 2768^2 .

It is a cyclic number.

It is not a de Polignac number, because 73320433 - 2¹ = 73320431 is a prime.

Together with 73320431, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 73320398 and 73320407.

It is not a weakly prime, because it can be changed into another prime (73320431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36660216 + 36660217.

It is an arithmetic number, because the mean of its divisors is an integer number (36660217).

Almost surely, 2^73320433 is an apocalyptic number.

It is an amenable number.

73320433 is a deficient number, since it is larger than the sum of its proper divisors (1).

73320433 is an equidigital number, since it uses as much as digits as its factorization.

73320433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 25.

The square root of 73320433 is about 8562.7351354576. The cubic root of 73320433 is about 418.5445331057.

Adding to 73320433 its product of nonzero digits (4536), we get a square (73324969 = 8563²).

The spelling of 73320433 in words is "seventy-three million, three hundred twenty thousand, four hundred thirty-three".