68775000 has 192 divisors, whose sum is σ = 247484160. Its totient is φ = 15600000.

The previous prime is 68774989. The next prime is 68775001. The reversal of 68775000 is 57786.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68775001) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 524935 + ... + 525065.

It is an arithmetic number, because the mean of its divisors is an integer number (1288980).

Almost surely, 2^68775000 is an apocalyptic number.

68775000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68775000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123742080).

68775000 is an abundant number, since it is smaller than the sum of its proper divisors (178709160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68775000 is a wasteful number, since it uses less digits than its factorization.

68775000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 68775000 is about 8293.0693955857. The cubic root of 68775000 is about 409.7102851172.

The spelling of 68775000 in words is "sixty-eight million, seven hundred seventy-five thousand".