6649293 has 8 divisors (see below), whose sum is σ = 10132288. Its totient is φ = 3799584.

The previous prime is 6649289. The next prime is 6649319. The reversal of 6649293 is 3929466.

It is a happy number.

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

It is not a de Polignac number, because 6649293 - 2² = 6649289 is a prime.

It is a d-powerful number, because it can be written as 6⁴ + 6⁸ + 4³ + 9 + 2¹³ + 9⁷ + 3¹¹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6649273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158296 + ... + 158337.

It is an arithmetic number, because the mean of its divisors is an integer number (1266536).

Almost surely, 2^6649293 is an apocalyptic number.

It is an amenable number.

6649293 is a deficient number, since it is larger than the sum of its proper divisors (3482995).

6649293 is a wasteful number, since it uses less digits than its factorization.

6649293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316643.

The product of its digits is 69984, while the sum is 39.

The square root of 6649293 is about 2578.6223065816. The cubic root of 6649293 is about 188.0435710842.

The spelling of 6649293 in words is "six million, six hundred forty-nine thousand, two hundred ninety-three".