652664893 has 2 divisors, whose sum is σ = 652664894. Its totient is φ = 652664892.

The previous prime is 652664869. The next prime is 652664963. The reversal of 652664893 is 398466256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 585785209 + 66879684 = 24203^2 + 8178^2 .

It is a cyclic number.

It is not a de Polignac number, because 652664893 - 2¹³ = 652656701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652664863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326332446 + 326332447.

It is an arithmetic number, because the mean of its divisors is an integer number (326332447).

Almost surely, 2^652664893 is an apocalyptic number.

It is an amenable number.

652664893 is a deficient number, since it is larger than the sum of its proper divisors (1).

652664893 is an equidigital number, since it uses as much as digits as its factorization.

652664893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 49.

The square root of 652664893 is about 25547.3069617915. The cubic root of 652664893 is about 867.4213037820.

The spelling of 652664893 in words is "six hundred fifty-two million, six hundred sixty-four thousand, eight hundred ninety-three".