654089 has 2 divisors, whose sum is σ = 654090. Its totient is φ = 654088.

The previous prime is 654067. The next prime is 654107. The reversal of 654089 is 980456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652864 + 1225 = 808^2 + 35^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (654019) 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, 327044 + 327045.

It is an arithmetic number, because the mean of its divisors is an integer number (327045).

2⁶⁵⁴⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

654089 is a deficient number, since it is larger than the sum of its proper divisors (1).

654089 is an equidigital number, since it uses as much as digits as its factorization.

654089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 654089 is about 808.7576892988. The cubic root of 654089 is about 86.8051746439.

The spelling of 654089 in words is "six hundred fifty-four thousand, eighty-nine".