648047 has 2 divisors, whose sum is σ = 648048. Its totient is φ = 648046.

The previous prime is 648041. The next prime is 648059. The reversal of 648047 is 740846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 648047 - 2¹⁶ = 582511 is a prime.

It is a Chen prime.

It is equal to p₅₂₆₇₉ and since 648047 and 52679 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324023 + 324024.

It is an arithmetic number, because the mean of its divisors is an integer number (324024).

2⁶⁴⁸⁰⁴⁷ is an apocalyptic number.

648047 is a deficient number, since it is larger than the sum of its proper divisors (1).

648047 is an equidigital number, since it uses as much as digits as its factorization.

648047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 648047 is about 805.0136644803. The cubic root of 648047 is about 86.5370663200.

It can be divided in two parts, 64804 and 7, that multiplied together give a triangular number (453628 = T₉₅₂).

The spelling of 648047 in words is "six hundred forty-eight thousand, forty-seven".