68740726 has 8 divisors (see below), whose sum is σ = 103230000. Its totient is φ = 34330728.

The previous prime is 68740697. The next prime is 68740729. The reversal of 68740726 is 62704786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×68740726² = 9450574822014152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68740729) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17601 + ... + 21148.

It is an arithmetic number, because the mean of its divisors is an integer number (12903750).

Almost surely, 2^68740726 is an apocalyptic number.

68740726 is a deficient number, since it is larger than the sum of its proper divisors (34489274).

68740726 is a wasteful number, since it uses less digits than its factorization.

68740726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39638.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 68740726 is about 8291.0027137856. The cubic root of 68740726 is about 409.6422141436.

The spelling of 68740726 in words is "sixty-eight million, seven hundred forty thousand, seven hundred twenty-six".