6647093 has 6 divisors (see below), whose sum is σ = 7015734. Its totient is φ = 6296904.

The previous prime is 6647089. The next prime is 6647099. The reversal of 6647093 is 3907466.

It can be written as a sum of positive squares in only one way, i.e., 5026564 + 1620529 = 2242^2 + 1273^2 .

It is not a de Polignac number, because 6647093 - 2² = 6647089 is a prime.

It is a d-powerful number, because it can be written as 6⁴ + 6⁸ + 4⁸ + 7⁶ + 0 + 9⁷ + 3³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6647099) 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 5 ways as a sum of consecutive naturals, for example, 8846 + ... + 9567.

It is an arithmetic number, because the mean of its divisors is an integer number (1169289).

Almost surely, 2^6647093 is an apocalyptic number.

It is an amenable number.

6647093 is a deficient number, since it is larger than the sum of its proper divisors (368641).

6647093 is a wasteful number, since it uses less digits than its factorization.

6647093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18451 (or 18432 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 6647093 is about 2578.1956869097. The cubic root of 6647093 is about 188.0228299573.

The spelling of 6647093 in words is "six million, six hundred forty-seven thousand, ninety-three".