6653279 has 4 divisors (see below), whose sum is σ = 6942576. Its totient is φ = 6363984.

The previous prime is 6653243. The next prime is 6653299. The reversal of 6653279 is 9723566.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6653279 - 2¹⁶ = 6587743 is a prime.

It is a super-2 number, since 2×6653279² = 88532242903682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6653219) 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 3 ways as a sum of consecutive naturals, for example, 144614 + ... + 144659.

It is an arithmetic number, because the mean of its divisors is an integer number (1735644).

Almost surely, 2^6653279 is an apocalyptic number.

6653279 is a deficient number, since it is larger than the sum of its proper divisors (289297).

6653279 is a wasteful number, since it uses less digits than its factorization.

6653279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289296.

The product of its digits is 68040, while the sum is 38.

The square root of 6653279 is about 2579.3950841234. The cubic root of 6653279 is about 188.0811385845.

The spelling of 6653279 in words is "six million, six hundred fifty-three thousand, two hundred seventy-nine".