68945345 has 16 divisors (see below), whose sum is σ = 95968128. Its totient is φ = 46569600.

The previous prime is 68945323. The next prime is 68945351. The reversal of 68945345 is 54354986.

It is not a de Polignac number, because 68945345 - 2⁸ = 68945089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68945296 and 68945305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12356 + ... + 17045.

It is an arithmetic number, because the mean of its divisors is an integer number (5998008).

Almost surely, 2^68945345 is an apocalyptic number.

It is an amenable number.

68945345 is a deficient number, since it is larger than the sum of its proper divisors (27022783).

68945345 is a wasteful number, since it uses less digits than its factorization.

68945345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29480.

The product of its digits is 518400, while the sum is 44.

The square root of 68945345 is about 8303.3333667871. Note that the first 4 decimals coincide. The cubic root of 68945345 is about 410.0482691535.

The spelling of 68945345 in words is "sixty-eight million, nine hundred forty-five thousand, three hundred forty-five".