306400067 has 2 divisors, whose sum is σ = 306400068. Its totient is φ = 306400066.

The previous prime is 306400057. The next prime is 306400079. The reversal of 306400067 is 760004603.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 306400067 - 2¹⁰ = 306399043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (306400037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153200033 + 153200034.

It is an arithmetic number, because the mean of its divisors is an integer number (153200034).

Almost surely, 2^306400067 is an apocalyptic number.

306400067 is a deficient number, since it is larger than the sum of its proper divisors (1).

306400067 is an equidigital number, since it uses as much as digits as its factorization.

306400067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 306400067 is about 17504.2871034498. The cubic root of 306400067 is about 674.1599550800.

The spelling of 306400067 in words is "three hundred six million, four hundred thousand, sixty-seven".