390906713 has 2 divisors, whose sum is σ = 390906714. Its totient is φ = 390906712.

The previous prime is 390906707. The next prime is 390906757. The reversal of 390906713 is 317609093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205865104 + 185041609 = 14348^2 + 13603^2 .

It is a cyclic number.

It is not a de Polignac number, because 390906713 - 2¹⁶ = 390841177 is a prime.

It is not a weakly prime, because it can be changed into another prime (390906793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195453356 + 195453357.

It is an arithmetic number, because the mean of its divisors is an integer number (195453357).

Almost surely, 2^390906713 is an apocalyptic number.

It is an amenable number.

390906713 is a deficient number, since it is larger than the sum of its proper divisors (1).

390906713 is an equidigital number, since it uses as much as digits as its factorization.

390906713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 390906713 is about 19771.3609293847. The cubic root of 390906713 is about 731.1801222048.

The spelling of 390906713 in words is "three hundred ninety million, nine hundred six thousand, seven hundred thirteen".