86278623 has 8 divisors (see below), whose sum is σ = 116094000. Its totient is φ = 56991168.

The previous prime is 86278607. The next prime is 86278631. The reversal of 86278623 is 32687268.

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

It is not a de Polignac number, because 86278623 - 2⁴ = 86278607 is a prime.

It is a super-2 number, since 2×86278623² = 14888001573552258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86278603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131598 + ... + 132251.

It is an arithmetic number, because the mean of its divisors is an integer number (14511750).

Almost surely, 2^86278623 is an apocalyptic number.

86278623 is a deficient number, since it is larger than the sum of its proper divisors (29815377).

86278623 is a wasteful number, since it uses less digits than its factorization.

86278623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263961.

The product of its digits is 193536, while the sum is 42.

The square root of 86278623 is about 9288.6286931926. The cubic root of 86278623 is about 441.8766658335.

The spelling of 86278623 in words is "eighty-six million, two hundred seventy-eight thousand, six hundred twenty-three".