78745484 has 6 divisors (see below), whose sum is σ = 137804604. Its totient is φ = 39372740.

The previous prime is 78745483. The next prime is 78745517. The reversal of 78745484 is 48454787.

It is not an unprimeable number, because it can be changed into a prime (78745483) by changing a digit.

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 as a sum of consecutive naturals, namely, 9843182 + ... + 9843189.

It is an arithmetic number, because the mean of its divisors is an integer number (22967434).

Almost surely, 2^78745484 is an apocalyptic number.

It is an amenable number.

78745484 is a deficient number, since it is larger than the sum of its proper divisors (59059120).

78745484 is a wasteful number, since it uses less digits than its factorization.

78745484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19686375 (or 19686373 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 47.

The square root of 78745484 is about 8873.8652232271. The cubic root of 78745484 is about 428.6227505311.

The spelling of 78745484 in words is "seventy-eight million, seven hundred forty-five thousand, four hundred eighty-four".