78076580 has 24 divisors (see below), whose sum is σ = 173606328. Its totient is φ = 29393408.

The previous prime is 78076577. The next prime is 78076601. The reversal of 78076580 is 8567087.

It can be written as a sum of positive squares in 4 ways, for example, as 42745444 + 35331136 = 6538^2 + 5944^2 .

It is a super-3 number, since 3×78076580³ (a number of 25 digits) contains 333 as substring.

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, 114479 + ... + 115158.

It is an arithmetic number, because the mean of its divisors is an integer number (7233597).

Almost surely, 2^78076580 is an apocalyptic number.

It is an amenable number.

78076580 is an abundant number, since it is smaller than the sum of its proper divisors (95529748).

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

78076580 is a wasteful number, since it uses less digits than its factorization.

78076580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229663 (or 229661 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 78076580 is about 8836.0952914735. The cubic root of 78076580 is about 427.4056515796.

The spelling of 78076580 in words is "seventy-eight million, seventy-six thousand, five hundred eighty".