305368997 has 2 divisors, whose sum is σ = 305368998. Its totient is φ = 305368996.

The previous prime is 305368993. The next prime is 305369021. The reversal of 305368997 is 799863503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153611236 + 151757761 = 12394^2 + 12319^2 .

It is an emirp because it is prime and its reverse (799863503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 305368997 - 2² = 305368993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305368993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152684498 + 152684499.

It is an arithmetic number, because the mean of its divisors is an integer number (152684499).

Almost surely, 2^305368997 is an apocalyptic number.

It is an amenable number.

305368997 is a deficient number, since it is larger than the sum of its proper divisors (1).

305368997 is an equidigital number, since it uses as much as digits as its factorization.

305368997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 305368997 is about 17474.8103566248. The cubic root of 305368997 is about 673.4028977295.

The spelling of 305368997 in words is "three hundred five million, three hundred sixty-eight thousand, nine hundred ninety-seven".