652909 has 2 divisors, whose sum is σ = 652910. Its totient is φ = 652908.

The previous prime is 652903. The next prime is 652913. The reversal of 652909 is 909256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 644809 + 8100 = 803^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 652909 - 2¹¹ = 650861 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 652909.

It is not a weakly prime, because it can be changed into another prime (652903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326454 + 326455.

It is an arithmetic number, because the mean of its divisors is an integer number (326455).

2⁶⁵²⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

652909 is a deficient number, since it is larger than the sum of its proper divisors (1).

652909 is an equidigital number, since it uses as much as digits as its factorization.

652909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 652909 is about 808.0278460548. The cubic root of 652909 is about 86.7529433401.

The spelling of 652909 in words is "six hundred fifty-two thousand, nine hundred nine".