536368681 has 8 divisors (see below), whose sum is σ = 544828104. Its totient is φ = 527971200.

The previous prime is 536368663. The next prime is 536368691. The reversal of 536368681 is 186863635.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 213627456 + 322741225 = 14616^2 + 17965^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 536368681 - 2¹⁷ = 536237609 is a prime.

It is a super-2 number, since 2×536368681² = 575382723915359522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536368631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2125 + ... + 32821.

It is an arithmetic number, because the mean of its divisors is an integer number (68103513).

Almost surely, 2^536368681 is an apocalyptic number.

It is an amenable number.

536368681 is a deficient number, since it is larger than the sum of its proper divisors (8459423).

536368681 is a wasteful number, since it uses less digits than its factorization.

536368681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30971.

The product of its digits is 622080, while the sum is 46.

The square root of 536368681 is about 23159.6347337345. The cubic root of 536368681 is about 812.4958231265.

The spelling of 536368681 in words is "five hundred thirty-six million, three hundred sixty-eight thousand, six hundred eighty-one".