396775523 has 2 divisors, whose sum is σ = 396775524. Its totient is φ = 396775522.

The previous prime is 396775487. The next prime is 396775591. The reversal of 396775523 is 325577693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396775523 - 2⁶ = 396775459 is a prime.

It is not a weakly prime, because it can be changed into another prime (396775123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198387761 + 198387762.

It is an arithmetic number, because the mean of its divisors is an integer number (198387762).

Almost surely, 2^396775523 is an apocalyptic number.

396775523 is a deficient number, since it is larger than the sum of its proper divisors (1).

396775523 is an equidigital number, since it uses as much as digits as its factorization.

396775523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1190700, while the sum is 47.

The square root of 396775523 is about 19919.2249598221. The cubic root of 396775523 is about 734.8211099956.

The spelling of 396775523 in words is "three hundred ninety-six million, seven hundred seventy-five thousand, five hundred twenty-three".