653204663 has 4 divisors (see below), whose sum is σ = 654292128. Its totient is φ = 652117200.

The previous prime is 653204633. The next prime is 653204681. The reversal of 653204663 is 366402356.

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 653204663 - 2¹⁸ = 652942519 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 (653204633) 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, 542831 + ... + 544032.

It is an arithmetic number, because the mean of its divisors is an integer number (163573032).

Almost surely, 2^653204663 is an apocalyptic number.

653204663 is a deficient number, since it is larger than the sum of its proper divisors (1087465).

653204663 is a wasteful number, since it uses less digits than its factorization.

653204663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087464.

The product of its (nonzero) digits is 77760, while the sum is 35.

The square root of 653204663 is about 25557.8689056815. The cubic root of 653204663 is about 867.6603641780.

The spelling of 653204663 in words is "six hundred fifty-three million, two hundred four thousand, six hundred sixty-three".