647053333 has 4 divisors (see below), whose sum is σ = 647123040. Its totient is φ = 646983628.

The previous prime is 647053301. The next prime is 647053367. The reversal of 647053333 is 333350746.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 647053333 - 2⁵ = 647053301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647053633) 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, 18313 + ... + 40366.

It is an arithmetic number, because the mean of its divisors is an integer number (161780760).

Almost surely, 2^647053333 is an apocalyptic number.

It is an amenable number.

647053333 is a deficient number, since it is larger than the sum of its proper divisors (69707).

647053333 is a wasteful number, since it uses less digits than its factorization.

647053333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69706.

The product of its (nonzero) digits is 68040, while the sum is 34.

The square root of 647053333 is about 25437.2430306431. The cubic root of 647053333 is about 864.9281386391.

The spelling of 647053333 in words is "six hundred forty-seven million, fifty-three thousand, three hundred thirty-three".