78988932 has 120 divisors (see below), whose sum is σ = 231739200. Its totient is φ = 23250240.

The previous prime is 78988927. The next prime is 78988933. The reversal of 78988932 is 23988987.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (78988933) 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 39 ways as a sum of consecutive naturals, for example, 131569 + ... + 132167.

It is an arithmetic number, because the mean of its divisors is an integer number (1931160).

Almost surely, 2^78988932 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 78988932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115869600).

78988932 is an abundant number, since it is smaller than the sum of its proper divisors (152750268).

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

78988932 is a wasteful number, since it uses less digits than its factorization.

78988932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 652 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 78988932 is about 8887.5717718621. The cubic root of 78988932 is about 429.0640033609.

Subtracting from 78988932 its reverse (23988987), we obtain a palindrome (54999945).

The spelling of 78988932 in words is "seventy-eight million, nine hundred eighty-eight thousand, nine hundred thirty-two".