68246845 has 4 divisors (see below), whose sum is σ = 81896220. Its totient is φ = 54597472.

The previous prime is 68246821. The next prime is 68246887. The reversal of 68246845 is 54864286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11002489 + 57244356 = 3317^2 + 7566^2 .

It is a cyclic number.

It is not a de Polignac number, because 68246845 - 2⁵ = 68246813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6824680 + ... + 6824689.

It is an arithmetic number, because the mean of its divisors is an integer number (20474055).

Almost surely, 2^68246845 is an apocalyptic number.

It is an amenable number.

68246845 is a deficient number, since it is larger than the sum of its proper divisors (13649375).

68246845 is a wasteful number, since it uses less digits than its factorization.

68246845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13649374.

The product of its digits is 368640, while the sum is 43.

The square root of 68246845 is about 8261.1648694358. The cubic root of 68246845 is about 408.6588040461.

The spelling of 68246845 in words is "sixty-eight million, two hundred forty-six thousand, eight hundred forty-five".