68948345 has 8 divisors (see below), whose sum is σ = 87605064. Its totient is φ = 51913984.

The previous prime is 68948333. The next prime is 68948351. The reversal of 68948345 is 54384986.

It can be written as a sum of positive squares in 4 ways, for example, as 13162384 + 55785961 = 3628^2 + 7469^2 .

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-68948345 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 68948345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405494 + ... + 405663.

It is an arithmetic number, because the mean of its divisors is an integer number (10950633).

Almost surely, 2^68948345 is an apocalyptic number.

It is an amenable number.

68948345 is a deficient number, since it is larger than the sum of its proper divisors (18656719).

68948345 is a wasteful number, since it uses less digits than its factorization.

68948345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811179.

The product of its digits is 829440, while the sum is 47.

The square root of 68948345 is about 8303.5140151625. The cubic root of 68948345 is about 410.0542165067.

The spelling of 68948345 in words is "sixty-eight million, nine hundred forty-eight thousand, three hundred forty-five".