30917941 has 2 divisors, whose sum is σ = 30917942. Its totient is φ = 30917940.

The previous prime is 30917933. The next prime is 30917981. The reversal of 30917941 is 14971903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30569841 + 348100 = 5529^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 30917941 - 2³ = 30917933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30917897 and 30917906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30917981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15458970 + 15458971.

It is an arithmetic number, because the mean of its divisors is an integer number (15458971).

Almost surely, 2^30917941 is an apocalyptic number.

It is an amenable number.

30917941 is a deficient number, since it is larger than the sum of its proper divisors (1).

30917941 is an equidigital number, since it uses as much as digits as its factorization.

30917941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 30917941 is about 5560.3903639942. The cubic root of 30917941 is about 313.8606390647.

The spelling of 30917941 in words is "thirty million, nine hundred seventeen thousand, nine hundred forty-one".