78530576 has 40 divisors (see below), whose sum is σ = 157828440. Its totient is φ = 37822464.

The previous prime is 78530509. The next prime is 78530587. The reversal of 78530576 is 67503587.

It can be written as a sum of positive squares in 4 ways, for example, as 27836176 + 50694400 = 5276^2 + 7120^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63920 + ... + 65136.

It is an arithmetic number, because the mean of its divisors is an integer number (3945711).

Almost surely, 2^78530576 is an apocalyptic number.

It is an amenable number.

78530576 is an abundant number, since it is smaller than the sum of its proper divisors (79297864).

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

78530576 is a wasteful number, since it uses less digits than its factorization.

78530576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 78530576 is about 8861.7479088496. The cubic root of 78530576 is about 428.2324704429.

The spelling of 78530576 in words is "seventy-eight million, five hundred thirty thousand, five hundred seventy-six".