78563300 has 36 divisors (see below), whose sum is σ = 175988736. Its totient is φ = 30410400.

The previous prime is 78563299. The next prime is 78563311. The reversal of 78563300 is 336587.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9572 + ... + 15771.

It is an arithmetic number, because the mean of its divisors is an integer number (4888576).

Almost surely, 2^78563300 is an apocalyptic number.

It is an amenable number.

78563300 is an abundant number, since it is smaller than the sum of its proper divisors (97425436).

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

78563300 is a wasteful number, since it uses less digits than its factorization.

78563300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25388 (or 25381 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 78563300 is about 8863.5940791532. The cubic root of 78563300 is about 428.2919442345.

Adding to 78563300 its reverse (336587), we get a palindrome (78899887).

The spelling of 78563300 in words is "seventy-eight million, five hundred sixty-three thousand, three hundred".