647714676 has 96 divisors (see below), whose sum is σ = 1785591808. Its totient is φ = 178899840.

The previous prime is 647714629. The next prime is 647714689. The reversal of 647714676 is 676417746.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 371166 + ... + 372906.

Almost surely, 2^647714676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647714676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (892795904).

647714676 is an abundant number, since it is smaller than the sum of its proper divisors (1137877132).

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

647714676 is a wasteful number, since it uses less digits than its factorization.

647714676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1899 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 48.

The square root of 647714676 is about 25450.2392130212. The cubic root of 647714676 is about 865.2227147681. Note that the first 3 decimals are identical.

The spelling of 647714676 in words is "six hundred forty-seven million, seven hundred fourteen thousand, six hundred seventy-six".