68206975 has 36 divisors (see below), whose sum is σ = 93087792. Its totient is φ = 49401600.

The previous prime is 68206973. The next prime is 68206981. The reversal of 68206975 is 57960286.

It is not a de Polignac number, because 68206975 - 2¹ = 68206973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68206973) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 408342 + ... + 408508.

It is an arithmetic number, because the mean of its divisors is an integer number (2585772).

Almost surely, 2^68206975 is an apocalyptic number.

68206975 is a deficient number, since it is larger than the sum of its proper divisors (24880817).

68206975 is a wasteful number, since it uses less digits than its factorization.

68206975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 68206975 is about 8258.7514189495. The cubic root of 68206975 is about 408.5792086675.

The spelling of 68206975 in words is "sixty-eight million, two hundred six thousand, nine hundred seventy-five".