68505845 has 8 divisors (see below), whose sum is σ = 85781376. Its totient is φ = 52421776.

The previous prime is 68505821. The next prime is 68505847. The reversal of 68505845 is 54850586.

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 68505845 - 2⁸ = 68505589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68505847) 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, 297737 + ... + 297966.

It is an arithmetic number, because the mean of its divisors is an integer number (10722672).

Almost surely, 2^68505845 is an apocalyptic number.

It is an amenable number.

68505845 is a deficient number, since it is larger than the sum of its proper divisors (17275531).

68505845 is a wasteful number, since it uses less digits than its factorization.

68505845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595731.

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 68505845 is about 8276.8257804547. The cubic root of 68505845 is about 409.1751112797.

The spelling of 68505845 in words is "sixty-eight million, five hundred five thousand, eight hundred forty-five".