305940667 has 2 divisors, whose sum is σ = 305940668. Its totient is φ = 305940666.

The previous prime is 305940631. The next prime is 305940689. The reversal of 305940667 is 766049503.

It is a strong prime.

It is an emirp because it is prime and its reverse (766049503) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-305940667 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (305940617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152970333 + 152970334.

It is an arithmetic number, because the mean of its divisors is an integer number (152970334).

Almost surely, 2^305940667 is an apocalyptic number.

305940667 is a deficient number, since it is larger than the sum of its proper divisors (1).

305940667 is an equidigital number, since it uses as much as digits as its factorization.

305940667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 305940667 is about 17491.1596813933. The cubic root of 305940667 is about 673.8228533265.

The spelling of 305940667 in words is "three hundred five million, nine hundred forty thousand, six hundred sixty-seven".