562780729 has 9 divisors (see below), whose sum is σ = 654856527. Its totient is φ = 482241144.

The previous prime is 562780717. The next prime is 562780747. The reversal of 562780729 is 927087265.

The square root of 562780729 is 23723.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 546297129 + 16483600 = 23373^2 + 4060^2 .

It is not a de Polignac number, because 562780729 - 2¹⁵ = 562747961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (562720729) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 164367 + ... + 167755.

Almost surely, 2^562780729 is an apocalyptic number.

562780729 is the 23723-rd square number.

562780729 is the 11862-nd centered octagonal number.

It is an amenable number.

562780729 is a deficient number, since it is larger than the sum of its proper divisors (92075798).

562780729 is an frugal number, since it uses more digits than its factorization.

562780729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792 (or 3396 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The cubic root of 562780729 is about 825.6191148270.

The spelling of 562780729 in words is "five hundred sixty-two million, seven hundred eighty thousand, seven hundred twenty-nine".