68790000 has 100 divisors (see below), whose sum is σ = 222160136. Its totient is φ = 18336000.

The previous prime is 68789977. The next prime is 68790011. The reversal of 68790000 is 9786.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 68790000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28854 + ... + 31146.

Almost surely, 2^68790000 is an apocalyptic number.

68790000 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 68790000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111080068).

68790000 is an abundant number, since it is smaller than the sum of its proper divisors (153370136).

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

68790000 is a wasteful number, since it uses less digits than its factorization.

68790000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324 (or 2303 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 68790000 is about 8293.9737158976. The cubic root of 68790000 is about 409.7400692323.

Adding to 68790000 its reverse (9786), we get a palindrome (68799786).

The spelling of 68790000 in words is "sixty-eight million, seven hundred ninety thousand".