68616586 has 8 divisors (see below), whose sum is σ = 103616100. Its totient is φ = 34077888.

The previous prime is 68616577. The next prime is 68616589. The reversal of 68616586 is 68561686.

It can be written as a sum of positive squares in 2 ways, for example, as 56927025 + 11689561 = 7545^2 + 3419^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68616589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114831 + ... + 115426.

Almost surely, 2^68616586 is an apocalyptic number.

68616586 is a deficient number, since it is larger than the sum of its proper divisors (34999514).

68616586 is a wasteful number, since it uses less digits than its factorization.

68616586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230408.

The product of its digits is 414720, while the sum is 46.

The square root of 68616586 is about 8283.5129021448. The cubic root of 68616586 is about 409.3954723635.

The spelling of 68616586 in words is "sixty-eight million, six hundred sixteen thousand, five hundred eighty-six".