78873344 has 72 divisors (see below), whose sum is σ = 176626128. Its totient is φ = 34836480.

The previous prime is 78873341. The next prime is 78873367. The reversal of 78873344 is 44337887.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 78873295 and 78873304.

It is not an unprimeable number, because it can be changed into a prime (78873341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103814 + ... + 104570.

Almost surely, 2^78873344 is an apocalyptic number.

78873344 is a gapful number since it is divisible by the number (74) 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 78873344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88313064).

78873344 is an abundant number, since it is smaller than the sum of its proper divisors (97752784).

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

78873344 is a wasteful number, since it uses less digits than its factorization.

78873344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 807 counting only the distinct ones).

The product of its digits is 451584, while the sum is 44.

The square root of 78873344 is about 8881.0666026103. The cubic root of 78873344 is about 428.8546117419.

The spelling of 78873344 in words is "seventy-eight million, eight hundred seventy-three thousand, three hundred forty-four".