653294749 has 8 divisors (see below), whose sum is σ = 658254168. Its totient is φ = 648352320.

The previous prime is 653294729. The next prime is 653294797. The reversal of 653294749 is 947492356.

It can be written as a sum of positive squares in 4 ways, for example, as 17347225 + 635947524 = 4165^2 + 25218^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 653294749 - 2¹¹ = 653292701 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 (653294729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78999 + ... + 86875.

It is an arithmetic number, because the mean of its divisors is an integer number (82281771).

Almost surely, 2^653294749 is an apocalyptic number.

It is an amenable number.

653294749 is a deficient number, since it is larger than the sum of its proper divisors (4959419).

653294749 is a wasteful number, since it uses less digits than its factorization.

653294749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8495.

The product of its digits is 1632960, while the sum is 49.

The square root of 653294749 is about 25559.6312375590. The cubic root of 653294749 is about 867.7002498182.

The spelling of 653294749 in words is "six hundred fifty-three million, two hundred ninety-four thousand, seven hundred forty-nine".