804231647 has 2 divisors, whose sum is σ = 804231648. Its totient is φ = 804231646.

The previous prime is 804231643. The next prime is 804231713. The reversal of 804231647 is 746132408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 804231647 - 2² = 804231643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (804231643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402115823 + 402115824.

It is an arithmetic number, because the mean of its divisors is an integer number (402115824).

Almost surely, 2^804231647 is an apocalyptic number.

804231647 is a deficient number, since it is larger than the sum of its proper divisors (1).

804231647 is an equidigital number, since it uses as much as digits as its factorization.

804231647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 804231647 is about 28358.9782432301. The cubic root of 804231647 is about 929.9516863174.

The spelling of 804231647 in words is "eight hundred four million, two hundred thirty-one thousand, six hundred forty-seven".