647054814 has 48 divisors (see below), whose sum is σ = 1546134912. Its totient is φ = 176828784.

The previous prime is 647054813. The next prime is 647054819. The reversal of 647054814 is 418450746.

647054814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647054813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7657 + ... + 36779.

It is an arithmetic number, because the mean of its divisors is an integer number (32211144).

Almost surely, 2^647054814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647054814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773067456).

647054814 is an abundant number, since it is smaller than the sum of its proper divisors (899080098).

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

647054814 is a wasteful number, since it uses less digits than its factorization.

647054814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29181 (or 29158 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 647054814 is about 25437.2721414856. The cubic root of 647054814 is about 864.9287985319.

The spelling of 647054814 in words is "six hundred forty-seven million, fifty-four thousand, eight hundred fourteen".