68819800 has 48 divisors (see below), whose sum is σ = 182867760. Its totient is φ = 23594880.

The previous prime is 68819789. The next prime is 68819827. The reversal of 68819800 is 891886.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 23179 + ... + 25978.

It is an arithmetic number, because the mean of its divisors is an integer number (3809745).

Almost surely, 2^68819800 is an apocalyptic number.

It is an amenable number.

68819800 is an abundant number, since it is smaller than the sum of its proper divisors (114047960).

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

68819800 is a wasteful number, since it uses less digits than its factorization.

68819800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49180 (or 49171 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 68819800 is about 8295.7700064551. The cubic root of 68819800 is about 409.7992274981.

The spelling of 68819800 in words is "sixty-eight million, eight hundred nineteen thousand, eight hundred".