396829325647 has 2 divisors, whose sum is σ = 396829325648. Its totient is φ = 396829325646.

The previous prime is 396829325561. The next prime is 396829325657. The reversal of 396829325647 is 746523928693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396829325647 - 2³¹ = 394681841999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396829325657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198414662823 + 198414662824.

It is an arithmetic number, because the mean of its divisors is an integer number (198414662824).

Almost surely, 2^396829325647 is an apocalyptic number.

396829325647 is a deficient number, since it is larger than the sum of its proper divisors (1).

396829325647 is an equidigital number, since it uses as much as digits as its factorization.

396829325647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117573120, while the sum is 64.

The spelling of 396829325647 in words is "three hundred ninety-six billion, eight hundred twenty-nine million, three hundred twenty-five thousand, six hundred forty-seven".