68628834 has 24 divisors (see below), whose sum is σ = 152324172. Its totient is φ = 22318080.

The previous prime is 68628827. The next prime is 68628839. The reversal of 68628834 is 43882686.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44156025 + 24472809 = 6645^2 + 4947^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68628834.

It is not an unprimeable number, because it can be changed into a prime (68628839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45759 + ... + 47234.

Almost surely, 2^68628834 is an apocalyptic number.

68628834 is an abundant number, since it is smaller than the sum of its proper divisors (83695338).

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

68628834 is a wasteful number, since it uses less digits than its factorization.

68628834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93042 (or 93039 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 68628834 is about 8284.2521690253. The cubic root of 68628834 is about 409.4198298244.

The spelling of 68628834 in words is "sixty-eight million, six hundred twenty-eight thousand, eight hundred thirty-four".