675647 has 8 divisors (see below), whose sum is σ = 777216. Its totient is φ = 575352.

The previous prime is 675643. The next prime is 675713. The reversal of 675647 is 746576.

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

It is a cyclic number.

It is not a de Polignac number, because 675647 - 2² = 675643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 675647.

It is not an unprimeable number, because it can be changed into a prime (675643) 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 7 ways as a sum of consecutive naturals, for example, 1658 + ... + 2024.

It is an arithmetic number, because the mean of its divisors is an integer number (97152).

2⁶⁷⁵⁶⁴⁷ is an apocalyptic number.

675647 is a deficient number, since it is larger than the sum of its proper divisors (101569).

675647 is a wasteful number, since it uses less digits than its factorization.

675647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its digits is 35280, while the sum is 35.

The square root of 675647 is about 821.9774936092. The cubic root of 675647 is about 87.7485504478.

The spelling of 675647 in words is "six hundred seventy-five thousand, six hundred forty-seven".