653249 has 4 divisors (see below), whose sum is σ = 664020. Its totient is φ = 642480.

The previous prime is 653243. The next prime is 653267. The reversal of 653249 is 942356.

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

It can be written as a sum of positive squares in 2 ways, for example, as 322624 + 330625 = 568^2 + 575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-653249 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 5⁷ + 2¹⁹ + 3 + 4⁶ + 9² .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (653243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5294 + ... + 5415.

It is an arithmetic number, because the mean of its divisors is an integer number (166005).

2⁶⁵³²⁴⁹ is an apocalyptic number.

It is an amenable number.

653249 is a deficient number, since it is larger than the sum of its proper divisors (10771).

653249 is a wasteful number, since it uses less digits than its factorization.

653249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10770.

The product of its digits is 6480, while the sum is 29.

The square root of 653249 is about 808.2382074611. The cubic root of 653249 is about 86.7679994874.

The spelling of 653249 in words is "six hundred fifty-three thousand, two hundred forty-nine".