67800726 has 80 divisors (see below), whose sum is σ = 183892896. Its totient is φ = 18226944.

The previous prime is 67800713. The next prime is 67800737. The reversal of 67800726 is 62700876.

It is a super-2 number, since 2×67800726² = 9193876892254152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 17520 + ... + 21036.

Almost surely, 2^67800726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67800726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91946448).

67800726 is an abundant number, since it is smaller than the sum of its proper divisors (116092170).

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

67800726 is a wasteful number, since it uses less digits than its factorization.

67800726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555 (or 3546 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 67800726 is about 8234.1196250723. The cubic root of 67800726 is about 407.7664104076.

The spelling of 67800726 in words is "sixty-seven million, eight hundred thousand, seven hundred twenty-six".