78484288 has 84 divisors (see below), whose sum is σ = 170322240. Its totient is φ = 35852544.

The previous prime is 78484283. The next prime is 78484297. The reversal of 78484288 is 88248487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78484283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 993433 + ... + 993511.

Almost surely, 2^78484288 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 78484288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85161120).

78484288 is an abundant number, since it is smaller than the sum of its proper divisors (91837952).

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

78484288 is a wasteful number, since it uses less digits than its factorization.

78484288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 143 counting only the distinct ones).

The product of its digits is 917504, while the sum is 49.

The square root of 78484288 is about 8859.1358495059. The cubic root of 78484288 is about 428.1483167225.

It can be divided in two parts, 784842 and 88, that multiplied together give a palindrome (69066096).

The spelling of 78484288 in words is "seventy-eight million, four hundred eighty-four thousand, two hundred eighty-eight".