647614272 has 56 divisors (see below), whose sum is σ = 1719986400. Its totient is φ = 215051776.

The previous prime is 647614249. The next prime is 647614277. The reversal of 647614272 is 272416746.

It is a self number, because there is not a number n which added to its sum of digits gives 647614272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647614277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45379 + ... + 57917.

Almost surely, 2^647614272 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 647614272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859993200).

647614272 is an abundant number, since it is smaller than the sum of its proper divisors (1072372128).

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

647614272 is a wasteful number, since it uses less digits than its factorization.

647614272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12823 (or 12813 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 647614272 is about 25448.2665814393. The cubic root of 647614272 is about 865.1780056218.

The spelling of 647614272 in words is "six hundred forty-seven million, six hundred fourteen thousand, two hundred seventy-two".