68147586 has 48 divisors (see below), whose sum is σ = 159988920. Its totient is φ = 20839680.

The previous prime is 68147531. The next prime is 68147587. The reversal of 68147586 is 68574186.

It is a happy number.

68147586 is a `hidden beast` number, since 68 + 1 + 4 + 7 + 586 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 45765225 + 22382361 = 6765^2 + 4731^2 .

It is not an unprimeable number, because it can be changed into a prime (68147587) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41550 + ... + 43158.

Almost surely, 2^68147586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68147586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79994460).

68147586 is an abundant number, since it is smaller than the sum of its proper divisors (91841334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68147586 is a wasteful number, since it uses less digits than its factorization.

68147586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811 (or 1808 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 68147586 is about 8255.1551166529. The cubic root of 68147586 is about 408.4605885571.

It can be divided in two parts, 6814 and 7586, that added together give a square (14400 = 120²).

The spelling of 68147586 in words is "sixty-eight million, one hundred forty-seven thousand, five hundred eighty-six".