78630300 has 162 divisors, whose sum is σ = 286861848. Its totient is φ = 17962560.

The previous prime is 78630247. The next prime is 78630301. The reversal of 78630300 is 303687.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78630301) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 43209 + ... + 44991.

Almost surely, 2^78630300 is an apocalyptic number.

78630300 is a gapful number since it is divisible by the number (70) 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 78630300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143430924).

78630300 is an abundant number, since it is smaller than the sum of its proper divisors (208231548).

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

78630300 is a wasteful number, since it uses less digits than its factorization.

78630300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817 (or 1800 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 78630300 is about 8867.3727789013. The cubic root of 78630300 is about 428.4136609766.

Adding to 78630300 its reverse (303687), we get a palindrome (78933987).

The spelling of 78630300 in words is "seventy-eight million, six hundred thirty thousand, three hundred".