653604323 has 2 divisors, whose sum is σ = 653604324. Its totient is φ = 653604322.

The previous prime is 653604311. The next prime is 653604331. The reversal of 653604323 is 323406356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 653604323 - 2⁴ = 653604307 is a prime.

It is a super-2 number, since 2×653604323² = 854397222088576658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 653604323.

It is not a weakly prime, because it can be changed into another prime (653604353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326802161 + 326802162.

It is an arithmetic number, because the mean of its divisors is an integer number (326802162).

Almost surely, 2^653604323 is an apocalyptic number.

653604323 is a deficient number, since it is larger than the sum of its proper divisors (1).

653604323 is an equidigital number, since it uses as much as digits as its factorization.

653604323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 32.

The square root of 653604323 is about 25565.6864370977. The cubic root of 653604323 is about 867.8372859820.

The spelling of 653604323 in words is "six hundred fifty-three million, six hundred four thousand, three hundred twenty-three".