390736933 has 2 divisors, whose sum is σ = 390736934. Its totient is φ = 390736932.

The previous prime is 390736901. The next prime is 390737003. The reversal of 390736933 is 339637093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257057089 + 133679844 = 16033^2 + 11562^2 .

It is a cyclic number.

It is not a de Polignac number, because 390736933 - 2⁵ = 390736901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 390736933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390136933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195368466 + 195368467.

It is an arithmetic number, because the mean of its divisors is an integer number (195368467).

Almost surely, 2^390736933 is an apocalyptic number.

It is an amenable number.

390736933 is a deficient number, since it is larger than the sum of its proper divisors (1).

390736933 is an equidigital number, since it uses as much as digits as its factorization.

390736933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 43.

The square root of 390736933 is about 19767.0668790289. The cubic root of 390736933 is about 731.0742506216.

The spelling of 390736933 in words is "three hundred ninety million, seven hundred thirty-six thousand, nine hundred thirty-three".