78823300 has 72 divisors (see below), whose sum is σ = 182863296. Its totient is φ = 29420160.

The previous prime is 78823291. The next prime is 78823307. The reversal of 78823300 is 332887.

It is a super-2 number, since 2×78823300² = 12426225245780000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78823307) 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, 98502 + ... + 99298.

It is an arithmetic number, because the mean of its divisors is an integer number (2539768).

Almost surely, 2^78823300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78823300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91431648).

78823300 is an abundant number, since it is smaller than the sum of its proper divisors (104039996).

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

78823300 is a wasteful number, since it uses less digits than its factorization.

78823300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 78823300 is about 8878.2487011798. The cubic root of 78823300 is about 428.7638918623.

The spelling of 78823300 in words is "seventy-eight million, eight hundred twenty-three thousand, three hundred".