67798434 has 64 divisors (see below), whose sum is σ = 157178880. Its totient is φ = 19293120.

The previous prime is 67798387. The next prime is 67798447. The reversal of 67798434 is 43489776.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89184 + ... + 89940.

It is an arithmetic number, because the mean of its divisors is an integer number (2455920).

Almost surely, 2^67798434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67798434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78589440).

67798434 is an abundant number, since it is smaller than the sum of its proper divisors (89380446).

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

67798434 is a wasteful number, since it uses less digits than its factorization.

67798434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

The product of its digits is 1016064, while the sum is 48.

The square root of 67798434 is about 8233.9804469042. The cubic root of 67798434 is about 407.7618155151.

The spelling of 67798434 in words is "sixty-seven million, seven hundred ninety-eight thousand, four hundred thirty-four".