30316997 has 2 divisors, whose sum is σ = 30316998. Its totient is φ = 30316996.

The previous prime is 30316991. The next prime is 30317009. The reversal of 30316997 is 79961303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30316036 + 961 = 5506^2 + 31^2 .

It is an emirp because it is prime and its reverse (79961303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30316997 - 2¹⁶ = 30251461 is a prime.

It is a Chen prime.

It is equal to p_1876358 and since 30316997 and 1876358 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30316997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30316991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15158498 + 15158499.

It is an arithmetic number, because the mean of its divisors is an integer number (15158499).

Almost surely, 2^30316997 is an apocalyptic number.

It is an amenable number.

30316997 is a deficient number, since it is larger than the sum of its proper divisors (1).

30316997 is an equidigital number, since it uses as much as digits as its factorization.

30316997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 30316997 is about 5506.0872677429. The cubic root of 30316997 is about 311.8138442717.

It can be divided in two parts, 30316 and 997, that added together give a palindrome (31313).

The spelling of 30316997 in words is "thirty million, three hundred sixteen thousand, nine hundred ninety-seven".