30982969 has 2 divisors, whose sum is σ = 30982970. Its totient is φ = 30982968.

The previous prime is 30982967. The next prime is 30982997. The reversal of 30982969 is 96928903.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26656569 + 4326400 = 5163^2 + 2080^2 .

It is an emirp because it is prime and its reverse (96928903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30982969 - 2¹ = 30982967 is a prime.

It is a super-2 number, since 2×30982969² = 1919888736109922, which contains 22 as substring.

Together with 30982967, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30982967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15491484 + 15491485.

It is an arithmetic number, because the mean of its divisors is an integer number (15491485).

Almost surely, 2^30982969 is an apocalyptic number.

It is an amenable number.

30982969 is a deficient number, since it is larger than the sum of its proper divisors (1).

30982969 is an equidigital number, since it uses as much as digits as its factorization.

30982969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 30982969 is about 5566.2347237608. The cubic root of 30982969 is about 314.0805269010.

The spelling of 30982969 in words is "thirty million, nine hundred eighty-two thousand, nine hundred sixty-nine".