396335647 has 2 divisors, whose sum is σ = 396335648. Its totient is φ = 396335646.

The previous prime is 396335633. The next prime is 396335659. The reversal of 396335647 is 746533693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396335647 - 2¹⁹ = 395811359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 396335597 and 396335606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396335047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198167823 + 198167824.

It is an arithmetic number, because the mean of its divisors is an integer number (198167824).

Almost surely, 2^396335647 is an apocalyptic number.

396335647 is a deficient number, since it is larger than the sum of its proper divisors (1).

396335647 is an equidigital number, since it uses as much as digits as its factorization.

396335647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 46.

The square root of 396335647 is about 19908.1804040450. The cubic root of 396335647 is about 734.5494621136.

The spelling of 396335647 in words is "three hundred ninety-six million, three hundred thirty-five thousand, six hundred forty-seven".