78470560 has 72 divisors (see below), whose sum is σ = 215675460. Its totient is φ = 26901504.

The previous prime is 78470537. The next prime is 78470591. The reversal of 78470560 is 6507487.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71978256 + 6492304 = 8484^2 + 2548^2 .

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, 2836 + ... + 12844.

Almost surely, 2^78470560 is an apocalyptic number.

78470560 is a gapful number since it is divisible by the number (70) 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 78470560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107837730).

78470560 is an abundant number, since it is smaller than the sum of its proper divisors (137204900).

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

78470560 is a wasteful number, since it uses less digits than its factorization.

78470560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10038 (or 10023 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 78470560 is about 8858.3610222208. The cubic root of 78470560 is about 428.1233522234.

The spelling of 78470560 in words is "seventy-eight million, four hundred seventy thousand, five hundred sixty".