68320735 has 8 divisors (see below), whose sum is σ = 93697056. Its totient is φ = 46848480.

The previous prime is 68320727. The next prime is 68320753. The reversal of 68320735 is 53702386.

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

It is not a de Polignac number, because 68320735 - 2³ = 68320727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68320735.

It is a congruent number.

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, 975976 + ... + 976045.

It is an arithmetic number, because the mean of its divisors is an integer number (11712132).

Almost surely, 2^68320735 is an apocalyptic number.

68320735 is a deficient number, since it is larger than the sum of its proper divisors (25376321).

68320735 is a wasteful number, since it uses less digits than its factorization.

68320735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952033.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 68320735 is about 8265.6357892179. The cubic root of 68320735 is about 408.8062340997.

The spelling of 68320735 in words is "sixty-eight million, three hundred twenty thousand, seven hundred thirty-five".