68727750 has 256 divisors, whose sum is σ = 226437120. Its totient is φ = 13478400.

The previous prime is 68727733. The next prime is 68727779. The reversal of 68727750 is 5772786.

68727750 = 92² + 93² + ... + 591².

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1296724 + ... + 1296776.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^68727750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68727750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113218560).

68727750 is an abundant number, since it is smaller than the sum of its proper divisors (157709370).

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

68727750 is a wasteful number, since it uses less digits than its factorization.

68727750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 68727750 is about 8290.2201418298. The cubic root of 68727750 is about 409.6164368391.

The spelling of 68727750 in words is "sixty-eight million, seven hundred twenty-seven thousand, seven hundred fifty".