647353 has 4 divisors (see below), whose sum is σ = 739840. Its totient is φ = 554868.

The previous prime is 647341. The next prime is 647357. The reversal of 647353 is 353746.

647353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 647353 - 2⁵ = 647321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46233 + ... + 46246.

It is an arithmetic number, because the mean of its divisors is an integer number (184960).

2⁶⁴⁷³⁵³ is an apocalyptic number.

It is an amenable number.

647353 is a deficient number, since it is larger than the sum of its proper divisors (92487).

647353 is an equidigital number, since it uses as much as digits as its factorization.

647353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92486.

The product of its digits is 7560, while the sum is 28.

The square root of 647353 is about 804.5825004311. The cubic root of 647353 is about 86.5061641502.

It can be divided in two parts, 647 and 353, that added together give a cube (1000 = 10³).

The spelling of 647353 in words is "six hundred forty-seven thousand, three hundred fifty-three".