86845 has 8 divisors (see below), whose sum is σ = 113760. Its totient is φ = 63120.

The previous prime is 86843. The next prime is 86851. The reversal of 86845 is 54868.

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

It is not a de Polignac number, because 86845 - 2¹ = 86843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86843) 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, 735 + ... + 844.

It is an arithmetic number, because the mean of its divisors is an integer number (14220).

2⁸⁶⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

86845 is a deficient number, since it is larger than the sum of its proper divisors (26915).

86845 is a wasteful number, since it uses less digits than its factorization.

86845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595.

The product of its digits is 7680, while the sum is 31.

The square root of 86845 is about 294.6947573338. The cubic root of 86845 is about 44.2841459233.

It can be divided in two parts, 868 and 45, that multiplied together give a triangular number (39060 = T₂₇₉).

The spelling of 86845 in words is "eighty-six thousand, eight hundred forty-five".