68077900 has 72 divisors (see below), whose sum is σ = 162489600. Its totient is φ = 24552000.

The previous prime is 68077879. The next prime is 68077909. The reversal of 68077900 is 977086.

It is a self number, because there is not a number n which added to its sum of digits gives 68077900.

It is not an unprimeable number, because it can be changed into a prime (68077909) 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 23 ways as a sum of consecutive naturals, for example, 218745 + ... + 219055.

It is an arithmetic number, because the mean of its divisors is an integer number (2256800).

Almost surely, 2^68077900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68077900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81244800).

68077900 is an abundant number, since it is smaller than the sum of its proper divisors (94411700).

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

68077900 is a wasteful number, since it uses less digits than its factorization.

68077900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 68077900 is about 8250.9332805447. The cubic root of 68077900 is about 408.3213139134.

The spelling of 68077900 in words is "sixty-eight million, seventy-seven thousand, nine hundred".