396247 has 2 divisors, whose sum is σ = 396248. Its totient is φ = 396246.

The previous prime is 396239. The next prime is 396259. The reversal of 396247 is 742693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396247 - 2³ = 396239 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198123 + 198124.

It is an arithmetic number, because the mean of its divisors is an integer number (198124).

2³⁹⁶²⁴⁷ is an apocalyptic number.

396247 is a deficient number, since it is larger than the sum of its proper divisors (1).

396247 is an equidigital number, since it uses as much as digits as its factorization.

396247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 396247 is about 629.4815326918. The cubic root of 396247 is about 73.4494693332.

The spelling of 396247 in words is "three hundred ninety-six thousand, two hundred forty-seven".