68086345 has 8 divisors (see below), whose sum is σ = 84521160. Its totient is φ = 52590720.

The previous prime is 68086331. The next prime is 68086349. The reversal of 68086345 is 54368086.

It can be written as a sum of positive squares in 4 ways, for example, as 3316041 + 64770304 = 1821^2 + 8048^2 .

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

It is not a de Polignac number, because 68086345 - 2⁵ = 68086313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68086298 and 68086307.

It is not an unprimeable number, because it can be changed into a prime (68086349) 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, 234636 + ... + 234925.

It is an arithmetic number, because the mean of its divisors is an integer number (10565145).

Almost surely, 2^68086345 is an apocalyptic number.

It is an amenable number.

68086345 is a deficient number, since it is larger than the sum of its proper divisors (16434815).

68086345 is a wasteful number, since it uses less digits than its factorization.

68086345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469595.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 68086345 is about 8251.4450249638. The cubic root of 68086345 is about 408.3381971747.

It can be divided in two parts, 680 and 86345, that added together give a square (87025 = 295²).

The spelling of 68086345 in words is "sixty-eight million, eighty-six thousand, three hundred forty-five".