456649 has 2 divisors, whose sum is σ = 456650. Its totient is φ = 456648.

The previous prime is 456647. The next prime is 456653. The reversal of 456649 is 946654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455625 + 1024 = 675^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 456649 - 2¹ = 456647 is a prime.

Together with 456647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (456641) 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, 228324 + 228325.

It is an arithmetic number, because the mean of its divisors is an integer number (228325).

2⁴⁵⁶⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

456649 is a deficient number, since it is larger than the sum of its proper divisors (1).

456649 is an equidigital number, since it uses as much as digits as its factorization.

456649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 456649 is about 675.7580928113. The cubic root of 456649 is about 77.0065210646.

The spelling of 456649 in words is "four hundred fifty-six thousand, six hundred forty-nine".