456647 has 2 divisors, whose sum is σ = 456648. Its totient is φ = 456646.

The previous prime is 456641. The next prime is 456649. The reversal of 456647 is 746654.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-456647 is a prime.

Together with 456649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228323 + 228324.

It is an arithmetic number, because the mean of its divisors is an integer number (228324).

2⁴⁵⁶⁶⁴⁷ is an apocalyptic number.

456647 is a deficient number, since it is larger than the sum of its proper divisors (1).

456647 is an equidigital number, since it uses as much as digits as its factorization.

456647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 32.

The square root of 456647 is about 675.7566129902. The cubic root of 456647 is about 77.0064086418.

The spelling of 456647 in words is "four hundred fifty-six thousand, six hundred forty-seven".