30773273 has 2 divisors, whose sum is σ = 30773274. Its totient is φ = 30773272.

The previous prime is 30773269. The next prime is 30773291. The reversal of 30773273 is 37237703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30327049 + 446224 = 5507^2 + 668^2 .

It is an emirp because it is prime and its reverse (37237703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30773273 - 2² = 30773269 is a prime.

It is a super-2 number, since 2×30773273² = 1893988662265058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30778273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15386636 + 15386637.

It is an arithmetic number, because the mean of its divisors is an integer number (15386637).

Almost surely, 2^30773273 is an apocalyptic number.

It is an amenable number.

30773273 is a deficient number, since it is larger than the sum of its proper divisors (1).

30773273 is an equidigital number, since it uses as much as digits as its factorization.

30773273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18522, while the sum is 32.

The square root of 30773273 is about 5547.3663120439. The cubic root of 30773273 is about 313.3703455850.

The spelling of 30773273 in words is "thirty million, seven hundred seventy-three thousand, two hundred seventy-three".