67800000 has 168 divisors, whose sum is σ = 226204272. Its totient is φ = 17920000.

The previous prime is 67799951. The next prime is 67800001. The reversal of 67800000 is 876.

It is a self number, because there is not a number n which added to its sum of digits gives 67800000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67800001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 599944 + ... + 600056.

It is an arithmetic number, because the mean of its divisors is an integer number (1346454).

Almost surely, 2^67800000 is an apocalyptic number.

67800000 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 67800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113102136).

67800000 is an abundant number, since it is smaller than the sum of its proper divisors (158404272).

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

67800000 is an equidigital number, since it uses as much as digits as its factorization.

67800000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 67800000 is about 8234.0755400956. The cubic root of 67800000 is about 407.7649549686.

Adding to 67800000 its reverse (876), we get a palindrome (67800876).

The spelling of 67800000 in words is "sixty-seven million, eight hundred thousand".