68732705 has 8 divisors (see below), whose sum is σ = 84397632. Its totient is φ = 53707248.

The previous prime is 68732693. The next prime is 68732707. The reversal of 68732705 is 50723786.

It is a happy number.

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 68732705 - 2¹² = 68728609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68732707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159629 + ... + 160058.

It is an arithmetic number, because the mean of its divisors is an integer number (10549704).

Almost surely, 2^68732705 is an apocalyptic number.

It is an amenable number.

68732705 is a deficient number, since it is larger than the sum of its proper divisors (15664927).

68732705 is a wasteful number, since it uses less digits than its factorization.

68732705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319735.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 68732705 is about 8290.5189825487. The cubic root of 68732705 is about 409.6262805130.

The spelling of 68732705 in words is "sixty-eight million, seven hundred thirty-two thousand, seven hundred five".