647082 has 32 divisors (see below), whose sum is σ = 1503360. Its totient is φ = 205920.

The previous prime is 647081. The next prime is 647099. The reversal of 647082 is 280746.

It is a super-2 number, since 2×647082² = 837430229448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (647081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982 + ... + 1502.

It is an arithmetic number, because the mean of its divisors is an integer number (46980).

2⁶⁴⁷⁰⁸² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751680).

647082 is an abundant number, since it is smaller than the sum of its proper divisors (856278).

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

647082 is a wasteful number, since it uses less digits than its factorization.

647082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 647082 is about 804.4140724776. The cubic root of 647082 is about 86.4940911687.

The spelling of 647082 in words is "six hundred forty-seven thousand, eighty-two".