68842705 has 8 divisors (see below), whose sum is σ = 82656000. Its totient is φ = 55044336.

The previous prime is 68842691. The next prime is 68842717. The reversal of 68842705 is 50724886.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68842705 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, 14746 + ... + 18844.

It is an arithmetic number, because the mean of its divisors is an integer number (10332000).

Almost surely, 2^68842705 is an apocalyptic number.

It is an amenable number.

68842705 is a deficient number, since it is larger than the sum of its proper divisors (13813295).

68842705 is a wasteful number, since it uses less digits than its factorization.

68842705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7463.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 68842705 is about 8297.1504144495. The cubic root of 68842705 is about 409.8446863638.

The spelling of 68842705 in words is "sixty-eight million, eight hundred forty-two thousand, seven hundred five".