647002 has 8 divisors (see below), whose sum is σ = 991296. Its totient is φ = 316572.

The previous prime is 646993. The next prime is 647011. The reversal of 647002 is 200746.

647002 is nontrivially palindromic in base 8.

It is an interprime number because it is at equal distance from previous prime (646993) and next prime (647011).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×647002² = 837223176008, which contains 22 as substring.

It is a nialpdrome in base 15.

It is an unprimeable number.

647002 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 3348 + ... + 3535.

It is an arithmetic number, because the mean of its divisors is an integer number (123912).

2⁶⁴⁷⁰⁰² is an apocalyptic number.

647002 is a deficient number, since it is larger than the sum of its proper divisors (344294).

647002 is a wasteful number, since it uses less digits than its factorization.

647002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 647002 is about 804.3643453063. The cubic root of 647002 is about 86.4905265445.

Adding to 647002 its reverse (200746), we get a palindrome (847748).

The spelling of 647002 in words is "six hundred forty-seven thousand, two".