78481584 has 60 divisors (see below), whose sum is σ = 226737472. Its totient is φ = 25315200.

The previous prime is 78481583. The next prime is 78481597. The reversal of 78481584 is 48518487.

It is not an unprimeable number, because it can be changed into a prime (78481583) 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, 4327 + ... + 13254.

Almost surely, 2^78481584 is an apocalyptic number.

It is an amenable number.

78481584 is an abundant number, since it is smaller than the sum of its proper divisors (148255888).

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

78481584 is a wasteful number, since it uses less digits than its factorization.

78481584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17626 (or 17617 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 78481584 is about 8858.9832373699. The cubic root of 78481584 is about 428.1433997029.

The spelling of 78481584 in words is "seventy-eight million, four hundred eighty-one thousand, five hundred eighty-four".