86788605 has 16 divisors (see below), whose sum is σ = 140765760. Its totient is φ = 45652608.

The previous prime is 86788601. The next prime is 86788627. The reversal of 86788605 is 50688768.

It is a happy number.

It is not a de Polignac number, because 86788605 - 2² = 86788601 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86788601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38535 + ... + 40724.

It is an arithmetic number, because the mean of its divisors is an integer number (8797860).

Almost surely, 2^86788605 is an apocalyptic number.

It is an amenable number.

86788605 is a deficient number, since it is larger than the sum of its proper divisors (53977155).

86788605 is a wasteful number, since it uses less digits than its factorization.

86788605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79340.

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 86788605 is about 9316.0401995698. The cubic root of 86788605 is about 442.7455817050.

The spelling of 86788605 in words is "eighty-six million, seven hundred eighty-eight thousand, six hundred five".