653002643 has 4 divisors (see below), whose sum is σ = 657987528. Its totient is φ = 648017760.

The previous prime is 653002607. The next prime is 653002663. The reversal of 653002643 is 346200356.

653002643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 653002643 - 2¹⁰ = 653001619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653002663) 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, 2492246 + ... + 2492507.

It is an arithmetic number, because the mean of its divisors is an integer number (164496882).

Almost surely, 2^653002643 is an apocalyptic number.

653002643 is a deficient number, since it is larger than the sum of its proper divisors (4984885).

653002643 is a wasteful number, since it uses less digits than its factorization.

653002643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4984884.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 653002643 is about 25553.9163926002. The cubic root of 653002643 is about 867.5709063453.

Adding to 653002643 its reverse (346200356), we get a palindrome (999202999).

The spelling of 653002643 in words is "six hundred fifty-three million, two thousand, six hundred forty-three".