653247349 has 4 divisors (see below), whose sum is σ = 656343520. Its totient is φ = 650151180.

The previous prime is 653247347. The next prime is 653247377. The reversal of 653247349 is 943742356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 653247349 - 2¹ = 653247347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653247347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1547769 + ... + 1548190.

It is an arithmetic number, because the mean of its divisors is an integer number (164085880).

Almost surely, 2^653247349 is an apocalyptic number.

It is an amenable number.

653247349 is a deficient number, since it is larger than the sum of its proper divisors (3096171).

653247349 is a wasteful number, since it uses less digits than its factorization.

653247349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096170.

The product of its digits is 544320, while the sum is 43.

The square root of 653247349 is about 25558.7039773147. The cubic root of 653247349 is about 867.6792638918.

The spelling of 653247349 in words is "six hundred fifty-three million, two hundred forty-seven thousand, three hundred forty-nine".