86428 has 24 divisors (see below), whose sum is σ = 169344. Its totient is φ = 38400.

The previous prime is 86423. The next prime is 86441. The reversal of 86428 is 82468.

86428 is nontrivially palindromic in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 86396 and 86405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2088 + ... + 2128.

It is an arithmetic number, because the mean of its divisors is an integer number (7056).

2⁸⁶⁴²⁸ is an apocalyptic number.

It is an amenable number.

86428 is a deficient number, since it is larger than the sum of its proper divisors (82916).

86428 is a wasteful number, since it uses less digits than its factorization.

86428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 91 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 86428 is about 293.9863942430. The cubic root of 86428 is about 44.2131530643.

The spelling of 86428 in words is "eighty-six thousand, four hundred twenty-eight".