78989548 has 24 divisors (see below), whose sum is σ = 159670224. Its totient is φ = 33792000.

The previous prime is 78989539. The next prime is 78989587. The reversal of 78989548 is 84598987.

It is a junction number, because it is equal to n+sod(n) for n = 78989492 and 78989501.

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 7 ways as a sum of consecutive naturals, for example, 52053 + ... + 53548.

It is an arithmetic number, because the mean of its divisors is an integer number (6652926).

Almost surely, 2^78989548 is an apocalyptic number.

It is an amenable number.

78989548 is an abundant number, since it is smaller than the sum of its proper divisors (80680676).

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

78989548 is a wasteful number, since it uses less digits than its factorization.

78989548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105633 (or 105631 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 58.

The square root of 78989548 is about 8887.6064269296. The cubic root of 78989548 is about 429.0651187186.

The spelling of 78989548 in words is "seventy-eight million, nine hundred eighty-nine thousand, five hundred forty-eight".