390129307 has 2 divisors, whose sum is σ = 390129308. Its totient is φ = 390129306.

The previous prime is 390129269. The next prime is 390129317. The reversal of 390129307 is 703921093.

It is a strong prime.

It is an emirp because it is prime and its reverse (703921093) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390129307 is a prime.

It is not a weakly prime, because it can be changed into another prime (390129317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195064653 + 195064654.

It is an arithmetic number, because the mean of its divisors is an integer number (195064654).

Almost surely, 2^390129307 is an apocalyptic number.

390129307 is a deficient number, since it is larger than the sum of its proper divisors (1).

390129307 is an equidigital number, since it uses as much as digits as its factorization.

390129307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 390129307 is about 19751.6912440429. The cubic root of 390129307 is about 730.6950951084.

The spelling of 390129307 in words is "three hundred ninety million, one hundred twenty-nine thousand, three hundred seven".