68721026 has 8 divisors (see below), whose sum is σ = 112452624. Its totient is φ = 31236820.

The previous prime is 68721013. The next prime is 68721031. The reversal of 68721026 is 62012786.

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

It is a junction number, because it is equal to n+sod(n) for n = 68720983 and 68721001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1561820 + ... + 1561863.

It is an arithmetic number, because the mean of its divisors is an integer number (14056578).

Almost surely, 2^68721026 is an apocalyptic number.

68721026 is a deficient number, since it is larger than the sum of its proper divisors (43731598).

68721026 is a wasteful number, since it uses less digits than its factorization.

68721026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123696.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 68721026 is about 8289.8145938254. The cubic root of 68721026 is about 409.6030780879.

The spelling of 68721026 in words is "sixty-eight million, seven hundred twenty-one thousand, twenty-six".