78754544 has 60 divisors (see below), whose sum is σ = 176629320. Its totient is φ = 33897600.

The previous prime is 78754519. The next prime is 78754573. The reversal of 78754544 is 44545787.

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 = 78754495 and 78754504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35714 + ... + 37854.

It is an arithmetic number, because the mean of its divisors is an integer number (2943822).

Almost surely, 2^78754544 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 78754544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88314660).

78754544 is an abundant number, since it is smaller than the sum of its proper divisors (97874776).

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

78754544 is a wasteful number, since it uses less digits than its factorization.

78754544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190 (or 2173 counting only the distinct ones).

The product of its digits is 627200, while the sum is 44.

The square root of 78754544 is about 8874.3756963518. The cubic root of 78754544 is about 428.6391881857.

The spelling of 78754544 in words is "seventy-eight million, seven hundred fifty-four thousand, five hundred forty-four".