682168537 has 16 divisors (see below), whose sum is σ = 765450000. Its totient is φ = 604764160.

The previous prime is 682168507. The next prime is 682168541. The reversal of 682168537 is 735861286.

It can be written as a sum of positive squares in 8 ways, for example, as 12187081 + 669981456 = 3491^2 + 25884^2 .

It is a cyclic number.

It is not a de Polignac number, because 682168537 - 2¹¹ = 682166489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (682168507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3339 + ... + 37087.

It is an arithmetic number, because the mean of its divisors is an integer number (47840625).

Almost surely, 2^682168537 is an apocalyptic number.

It is an amenable number.

682168537 is a deficient number, since it is larger than the sum of its proper divisors (83281463).

682168537 is a wasteful number, since it uses less digits than its factorization.

682168537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33836.

The product of its digits is 483840, while the sum is 46.

The square root of 682168537 is about 26118.3563227091. The cubic root of 682168537 is about 880.2997158329.

The spelling of 682168537 in words is "six hundred eighty-two million, one hundred sixty-eight thousand, five hundred thirty-seven".