396823351 has 2 divisors, whose sum is σ = 396823352. Its totient is φ = 396823350.

The previous prime is 396823267. The next prime is 396823363. The reversal of 396823351 is 153328693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396823351 - 2⁷ = 396823223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396823381) 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, 198411675 + 198411676.

It is an arithmetic number, because the mean of its divisors is an integer number (198411676).

Almost surely, 2^396823351 is an apocalyptic number.

396823351 is a deficient number, since it is larger than the sum of its proper divisors (1).

396823351 is an equidigital number, since it uses as much as digits as its factorization.

396823351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 396823351 is about 19920.4254723638. The cubic root of 396823351 is about 734.8506343404.

The spelling of 396823351 in words is "three hundred ninety-six million, eight hundred twenty-three thousand, three hundred fifty-one".