647051334 has 32 divisors (see below), whose sum is σ = 1312032384. Its totient is φ = 212714880.

The previous prime is 647051333. The next prime is 647051369. The reversal of 647051334 is 433150746.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 647051295 and 647051304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647051333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140797 + ... + 145319.

It is an arithmetic number, because the mean of its divisors is an integer number (41001012).

Almost surely, 2^647051334 is an apocalyptic number.

647051334 is an abundant number, since it is smaller than the sum of its proper divisors (664981050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

647051334 is a wasteful number, since it uses less digits than its factorization.

647051334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4852.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 647051334 is about 25437.2037378325. The cubic root of 647051334 is about 864.9272479381.

The spelling of 647051334 in words is "six hundred forty-seven million, fifty-one thousand, three hundred thirty-four".