654349 has 2 divisors, whose sum is σ = 654350. Its totient is φ = 654348.

The previous prime is 654343. The next prime is 654371. The reversal of 654349 is 943456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465124 + 189225 = 682^2 + 435^2 .

It is a cyclic number.

It is not a de Polignac number, because 654349 - 2⁷ = 654221 is a prime.

It is a super-2 number, since 2×654349² = 856345227602, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

654349 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 654349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654343) 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, 327174 + 327175.

It is an arithmetic number, because the mean of its divisors is an integer number (327175).

2⁶⁵⁴³⁴⁹ is an apocalyptic number.

It is an amenable number.

654349 is a deficient number, since it is larger than the sum of its proper divisors (1).

654349 is an equidigital number, since it uses as much as digits as its factorization.

654349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 654349 is about 808.9184136858. The cubic root of 654349 is about 86.8166747892.

The spelling of 654349 in words is "six hundred fifty-four thousand, three hundred forty-nine".