30994277 has 2 divisors, whose sum is σ = 30994278. Its totient is φ = 30994276.

The previous prime is 30994217. The next prime is 30994279. The reversal of 30994277 is 77249903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29008996 + 1985281 = 5386^2 + 1409^2 .

It is a cyclic number.

It is not a de Polignac number, because 30994277 - 2¹² = 30990181 is a prime.

Together with 30994279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30994279) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15497138 + 15497139.

It is an arithmetic number, because the mean of its divisors is an integer number (15497139).

Almost surely, 2^30994277 is an apocalyptic number.

It is an amenable number.

30994277 is a deficient number, since it is larger than the sum of its proper divisors (1).

30994277 is an equidigital number, since it uses as much as digits as its factorization.

30994277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 30994277 is about 5567.2503985361. The cubic root of 30994277 is about 314.1187327360.

The spelling of 30994277 in words is "thirty million, nine hundred ninety-four thousand, two hundred seventy-seven".