647343102 has 128 divisors (see below), whose sum is σ = 1619896320. Its totient is φ = 168284160.

The previous prime is 647343101. The next prime is 647343107. The reversal of 647343102 is 201343746.

It is a self number, because there is not a number n which added to its sum of digits gives 647343102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647343101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3876223 + ... + 3876389.

It is an arithmetic number, because the mean of its divisors is an integer number (12655440).

Almost surely, 2^647343102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647343102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809948160).

647343102 is an abundant number, since it is smaller than the sum of its proper divisors (972553218).

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

647343102 is a wasteful number, since it uses less digits than its factorization.

647343102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 647343102 is about 25442.9381558027. The cubic root of 647343102 is about 865.0572325614.

Adding to 647343102 its reverse (201343746), we get a palindrome (848686848).

The spelling of 647343102 in words is "six hundred forty-seven million, three hundred forty-three thousand, one hundred two".