68729375 has 40 divisors (see below), whose sum is σ = 101030160. Its totient is φ = 46080000.

The previous prime is 68729363. The next prime is 68729383. The reversal of 68729375 is 57392786.

It is not a de Polignac number, because 68729375 - 2²² = 64535071 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 39 ways as a sum of consecutive naturals, for example, 88991 + ... + 89759.

It is an arithmetic number, because the mean of its divisors is an integer number (2525754).

Almost surely, 2^68729375 is an apocalyptic number.

68729375 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68729375 is a deficient number, since it is larger than the sum of its proper divisors (32300785).

68729375 is a wasteful number, since it uses less digits than its factorization.

68729375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 798 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 68729375 is about 8290.3181482980. The cubic root of 68729375 is about 409.6196651395.

The spelling of 68729375 in words is "sixty-eight million, seven hundred twenty-nine thousand, three hundred seventy-five".