86278 has 8 divisors (see below), whose sum is σ = 130680. Its totient is φ = 42720.

The previous prime is 86269. The next prime is 86287. The reversal of 86278 is 87268.

It is an interprime number because it is at equal distance from previous prime (86269) and next prime (86287).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238 + ... + 478.

It is an arithmetic number, because the mean of its divisors is an integer number (16335).

2⁸⁶²⁷⁸ is an apocalyptic number.

86278 is a deficient number, since it is larger than the sum of its proper divisors (44402).

86278 is a wasteful number, since it uses less digits than its factorization.

86278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its digits is 5376, while the sum is 31.

The square root of 86278 is about 293.7311696092. The cubic root of 86278 is about 44.1875602264.

Subtracting 86278 from its reverse (87268), we obtain a triangular number (990 = T₄₄).

The spelling of 86278 in words is "eighty-six thousand, two hundred seventy-eight".