68388700 has 18 divisors (see below), whose sum is σ = 148403696. Its totient is φ = 27355440.

The previous prime is 68388689. The next prime is 68388701. The reversal of 68388700 is 788386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68388701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341844 + ... + 342043.

Almost surely, 2^68388700 is an apocalyptic number.

It is an amenable number.

68388700 is an abundant number, since it is smaller than the sum of its proper divisors (80014996).

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

68388700 is a wasteful number, since it uses less digits than its factorization.

68388700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683901 (or 683894 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 68388700 is about 8269.7460662344. The cubic root of 68388700 is about 408.9417483888.

The spelling of 68388700 in words is "sixty-eight million, three hundred eighty-eight thousand, seven hundred".