68842764 has 48 divisors (see below), whose sum is σ = 180092640. Its totient is φ = 22740480.

The previous prime is 68842721. The next prime is 68842769. The reversal of 68842764 is 46724886.

It is not an unprimeable number, because it can be changed into a prime (68842769) 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 15 ways as a sum of consecutive naturals, for example, 9384 + ... + 15024.

It is an arithmetic number, because the mean of its divisors is an integer number (3751930).

Almost surely, 2^68842764 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 68842764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90046320).

68842764 is an abundant number, since it is smaller than the sum of its proper divisors (111249876).

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

68842764 is a wasteful number, since it uses less digits than its factorization.

68842764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767 (or 5759 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 68842764 is about 8297.1539698863. The cubic root of 68842764 is about 409.8448034464.

The spelling of 68842764 in words is "sixty-eight million, eight hundred forty-two thousand, seven hundred sixty-four".