653536673 has 4 divisors (see below), whose sum is σ = 687933360. Its totient is φ = 619139988.

The previous prime is 653536643. The next prime is 653536703. The reversal of 653536673 is 376635356.

653536673 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (653536643) and next prime (653536703).

It is a cyclic number.

It is not a de Polignac number, because 653536673 - 2¹⁸ = 653274529 is a prime.

It is a super-2 number, since 2×653536673² = 854220365911817858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653536603) 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, 17198315 + ... + 17198352.

It is an arithmetic number, because the mean of its divisors is an integer number (171983340).

Almost surely, 2^653536673 is an apocalyptic number.

It is an amenable number.

653536673 is a deficient number, since it is larger than the sum of its proper divisors (34396687).

653536673 is a wasteful number, since it uses less digits than its factorization.

653536673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34396686.

The product of its digits is 1020600, while the sum is 44.

The square root of 653536673 is about 25564.3633404002. The cubic root of 653536673 is about 867.8073436984.

The spelling of 653536673 in words is "six hundred fifty-three million, five hundred thirty-six thousand, six hundred seventy-three".