78086056 has 16 divisors (see below), whose sum is σ = 148418100. Its totient is φ = 38507904.

The previous prime is 78086053. The next prime is 78086059. The reversal of 78086056 is 65068087.

It is an interprime number because it is at equal distance from previous prime (78086053) and next prime (78086059).

It can be written as a sum of positive squares in 2 ways, for example, as 68062500 + 10023556 = 8250^2 + 3166^2 .

It is not an unprimeable number, because it can be changed into a prime (78086053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66271 + ... + 67438.

Almost surely, 2^78086056 is an apocalyptic number.

It is an amenable number.

78086056 is a deficient number, since it is larger than the sum of its proper divisors (70332044).

78086056 is a wasteful number, since it uses less digits than its factorization.

78086056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133788 (or 133784 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 78086056 is about 8836.6314849042. The cubic root of 78086056 is about 427.4229420062.

The spelling of 78086056 in words is "seventy-eight million, eighty-six thousand, fifty-six".