68709715 has 8 divisors (see below), whose sum is σ = 82650960. Its totient is φ = 54834912.

The previous prime is 68709701. The next prime is 68709731. The reversal of 68709715 is 51790786.

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

It is a cyclic number.

It is not a de Polignac number, because 68709715 - 2⁷ = 68709587 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14304 + ... + 18493.

It is an arithmetic number, because the mean of its divisors is an integer number (10331370).

Almost surely, 2^68709715 is an apocalyptic number.

68709715 is a deficient number, since it is larger than the sum of its proper divisors (13941245).

68709715 is a wasteful number, since it uses less digits than its factorization.

68709715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33221.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 68709715 is about 8289.1323430140. The cubic root of 68709715 is about 409.5806042547.

The spelling of 68709715 in words is "sixty-eight million, seven hundred nine thousand, seven hundred fifteen".