390304307 has 2 divisors, whose sum is σ = 390304308. Its totient is φ = 390304306.

The previous prime is 390304303. The next prime is 390304333. The reversal of 390304307 is 703403093.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 390304307 - 2² = 390304303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 390304307.

It is not a weakly prime, because it can be changed into another prime (390304303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195152153 + 195152154.

It is an arithmetic number, because the mean of its divisors is an integer number (195152154).

Almost surely, 2^390304307 is an apocalyptic number.

390304307 is a deficient number, since it is larger than the sum of its proper divisors (1).

390304307 is an equidigital number, since it uses as much as digits as its factorization.

390304307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 390304307 is about 19756.1207477581. The cubic root of 390304307 is about 730.8043345532.

The spelling of 390304307 in words is "three hundred ninety million, three hundred four thousand, three hundred seven".