68390700 has 144 divisors (see below), whose sum is σ = 234151680. Its totient is φ = 15079680.

The previous prime is 68390659. The next prime is 68390701. The reversal of 68390700 is 709386.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68390701) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60339 + ... + 61461.

Almost surely, 2^68390700 is an apocalyptic number.

68390700 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 68390700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117075840).

68390700 is an abundant number, since it is smaller than the sum of its proper divisors (165760980).

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

68390700 is a wasteful number, since it uses less digits than its factorization.

68390700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 68390700 is about 8269.8669880476. The cubic root of 68390700 is about 408.9457347955.

The spelling of 68390700 in words is "sixty-eight million, three hundred ninety thousand, seven hundred".