396766523 has 2 divisors, whose sum is σ = 396766524. Its totient is φ = 396766522.

The previous prime is 396766511. The next prime is 396766541. The reversal of 396766523 is 325667693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396766523 - 2⁸ = 396766267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (396766423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198383261 + 198383262.

It is an arithmetic number, because the mean of its divisors is an integer number (198383262).

Almost surely, 2^396766523 is an apocalyptic number.

396766523 is a deficient number, since it is larger than the sum of its proper divisors (1).

396766523 is an equidigital number, since it uses as much as digits as its factorization.

396766523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 47.

The square root of 396766523 is about 19918.9990461368. Note that the first 3 decimals coincide. The cubic root of 396766523 is about 734.8155540077.

The spelling of 396766523 in words is "three hundred ninety-six million, seven hundred sixty-six thousand, five hundred twenty-three".