647453 has 2 divisors, whose sum is σ = 647454. Its totient is φ = 647452.

The previous prime is 647441. The next prime is 647477. The reversal of 647453 is 354746.

647453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465124 + 182329 = 682^2 + 427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-647453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (647753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323726 + 323727.

It is an arithmetic number, because the mean of its divisors is an integer number (323727).

2⁶⁴⁷⁴⁵³ is an apocalyptic number.

It is an amenable number.

647453 is a deficient number, since it is larger than the sum of its proper divisors (1).

647453 is an equidigital number, since it uses as much as digits as its factorization.

647453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 29.

The square root of 647453 is about 804.6446420626. The cubic root of 647453 is about 86.5106182739.

The spelling of 647453 in words is "six hundred forty-seven thousand, four hundred fifty-three".