653649107 has 2 divisors, whose sum is σ = 653649108. Its totient is φ = 653649106.

The previous prime is 653649089. The next prime is 653649169. The reversal of 653649107 is 701946356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 653649107 - 2¹⁸ = 653386963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (653640107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326824553 + 326824554.

It is an arithmetic number, because the mean of its divisors is an integer number (326824554).

Almost surely, 2^653649107 is an apocalyptic number.

653649107 is a deficient number, since it is larger than the sum of its proper divisors (1).

653649107 is an equidigital number, since it uses as much as digits as its factorization.

653649107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 653649107 is about 25566.5622835766. The cubic root of 653649107 is about 867.8571065044.

The spelling of 653649107 in words is "six hundred fifty-three million, six hundred forty-nine thousand, one hundred seven".