86428605 has 16 divisors (see below), whose sum is σ = 138415104. Its totient is φ = 46052160.

The previous prime is 86428603. The next prime is 86428609. The reversal of 86428605 is 50682468.

It is not a de Polignac number, because 86428605 - 2¹ = 86428603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86428603) 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, 20107 + ... + 24023.

It is an arithmetic number, because the mean of its divisors is an integer number (8650944).

Almost surely, 2^86428605 is an apocalyptic number.

It is an amenable number.

86428605 is a deficient number, since it is larger than the sum of its proper divisors (51986499).

86428605 is a wasteful number, since it uses less digits than its factorization.

86428605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 86428605 is about 9296.6986075703. The cubic root of 86428605 is about 442.1325622875.

The spelling of 86428605 in words is "eighty-six million, four hundred twenty-eight thousand, six hundred five".