86780712 has 16 divisors (see below), whose sum is σ = 216951840. Its totient is φ = 28926896.

The previous prime is 86780689. The next prime is 86780717. The reversal of 86780712 is 21708768.

It is not an unprimeable number, because it can be changed into a prime (86780717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1807908 + ... + 1807955.

It is an arithmetic number, because the mean of its divisors is an integer number (13559490).

Almost surely, 2^86780712 is an apocalyptic number.

It is an amenable number.

86780712 is an abundant number, since it is smaller than the sum of its proper divisors (130171128).

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

86780712 is a wasteful number, since it uses less digits than its factorization.

86780712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3615872 (or 3615868 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 86780712 is about 9315.6165657459. The cubic root of 86780712 is about 442.7321594482.

The spelling of 86780712 in words is "eighty-six million, seven hundred eighty thousand, seven hundred twelve".