30916073 has 2 divisors, whose sum is σ = 30916074. Its totient is φ = 30916072.

The previous prime is 30916069. The next prime is 30916087. The reversal of 30916073 is 37061903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27541504 + 3374569 = 5248^2 + 1837^2 .

It is a cyclic number.

It is not a de Polignac number, because 30916073 - 2² = 30916069 is a prime.

It is not a weakly prime, because it can be changed into another prime (30916033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15458036 + 15458037.

It is an arithmetic number, because the mean of its divisors is an integer number (15458037).

Almost surely, 2^30916073 is an apocalyptic number.

It is an amenable number.

30916073 is a deficient number, since it is larger than the sum of its proper divisors (1).

30916073 is an equidigital number, since it uses as much as digits as its factorization.

30916073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 30916073 is about 5560.2223876388. Note that the first 3 decimals coincide. The cubic root of 30916073 is about 313.8543179939.

Adding to 30916073 its reverse (37061903), we get a palindrome (67977976).

The spelling of 30916073 in words is "thirty million, nine hundred sixteen thousand, seventy-three".