6617493 has 12 divisors (see below), whose sum is σ = 9599148. Its totient is φ = 4392960.

The previous prime is 6617489. The next prime is 6617497. The reversal of 6617493 is 3947166.

It is an interprime number because it is at equal distance from previous prime (6617489) and next prime (6617497).

It can be written as a sum of positive squares in 2 ways, for example, as 5489649 + 1127844 = 2343^2 + 1062^2 .

It is not a de Polignac number, because 6617493 - 2² = 6617489 is a prime.

6617493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6617497) 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 11 ways as a sum of consecutive naturals, for example, 883 + ... + 3743.

It is an arithmetic number, because the mean of its divisors is an integer number (799929).

Almost surely, 2^6617493 is an apocalyptic number.

It is an amenable number.

6617493 is a deficient number, since it is larger than the sum of its proper divisors (2981655).

6617493 is a wasteful number, since it uses less digits than its factorization.

6617493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124 (or 3121 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 6617493 is about 2572.4488333104. The cubic root of 6617493 is about 187.7433214350.

The spelling of 6617493 in words is "six million, six hundred seventeen thousand, four hundred ninety-three".