562789649 has 2 divisors, whose sum is σ = 562789650. Its totient is φ = 562789648.

The previous prime is 562789627. The next prime is 562789673. The reversal of 562789649 is 946987265.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 417466624 + 145323025 = 20432^2 + 12055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-562789649 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 562789594 and 562789603.

It is not a weakly prime, because it can be changed into another prime (562789679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281394824 + 281394825.

It is an arithmetic number, because the mean of its divisors is an integer number (281394825).

Almost surely, 2^562789649 is an apocalyptic number.

It is an amenable number.

562789649 is a deficient number, since it is larger than the sum of its proper divisors (1).

562789649 is an equidigital number, since it uses as much as digits as its factorization.

562789649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 56.

The square root of 562789649 is about 23723.1880024587. The cubic root of 562789649 is about 825.6234767885.

The spelling of 562789649 in words is "five hundred sixty-two million, seven hundred eighty-nine thousand, six hundred forty-nine".