68667726 has 32 divisors (see below), whose sum is σ = 147184128. Its totient is φ = 21280640.

The previous prime is 68667713. The next prime is 68667733. The reversal of 68667726 is 62776686.

It is a happy number.

It is a super-2 number, since 2×68667726² = 9430513188022152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4411 + ... + 12521.

It is an arithmetic number, because the mean of its divisors is an integer number (4599504).

Almost surely, 2^68667726 is an apocalyptic number.

68667726 is an abundant number, since it is smaller than the sum of its proper divisors (78516402).

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

68667726 is a wasteful number, since it uses less digits than its factorization.

68667726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8216.

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

The square root of 68667726 is about 8286.5991818116. The cubic root of 68667726 is about 409.4971547045.

The spelling of 68667726 in words is "sixty-eight million, six hundred sixty-seven thousand, seven hundred twenty-six".