653667617 has 2 divisors, whose sum is σ = 653667618. Its totient is φ = 653667616.

The previous prime is 653667589. The next prime is 653667701. The reversal of 653667617 is 716766356.

653667617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 468462736 + 185204881 = 21644^2 + 13609^2 .

It is a cyclic number.

It is not a de Polignac number, because 653667617 - 2²⁸ = 385232161 is a prime.

It is not a weakly prime, because it can be changed into another prime (653667517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326833808 + 326833809.

It is an arithmetic number, because the mean of its divisors is an integer number (326833809).

Almost surely, 2^653667617 is an apocalyptic number.

It is an amenable number.

653667617 is a deficient number, since it is larger than the sum of its proper divisors (1).

653667617 is an equidigital number, since it uses as much as digits as its factorization.

653667617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 47.

The square root of 653667617 is about 25566.9242772767. The cubic root of 653667617 is about 867.8652984040.

The spelling of 653667617 in words is "six hundred fifty-three million, six hundred sixty-seven thousand, six hundred seventeen".