68670828 has 144 divisors (see below), whose sum is σ = 193729536. Its totient is φ = 21228480.

The previous prime is 68670787. The next prime is 68670929. The reversal of 68670828 is 82807686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1295650 + ... + 1295702.

It is an arithmetic number, because the mean of its divisors is an integer number (1345344).

Almost surely, 2^68670828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68670828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96864768).

68670828 is an abundant number, since it is smaller than the sum of its proper divisors (125058708).

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

68670828 is a wasteful number, since it uses less digits than its factorization.

68670828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 68670828 is about 8286.7863493637. The cubic root of 68670828 is about 409.5033208280.

The spelling of 68670828 in words is "sixty-eight million, six hundred seventy thousand, eight hundred twenty-eight".