86340831 has 8 divisors (see below), whose sum is σ = 115246464. Its totient is φ = 57497880.

The previous prime is 86340817. The next prime is 86340851. The reversal of 86340831 is 13804368.

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

It is not a de Polignac number, because 86340831 - 2⁵ = 86340799 is a prime.

It is a super-2 number, since 2×86340831² = 14909478195541122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86340792 and 86340801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86340811) 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, 12355 + ... + 18036.

It is an arithmetic number, because the mean of its divisors is an integer number (14405808).

Almost surely, 2^86340831 is an apocalyptic number.

86340831 is a deficient number, since it is larger than the sum of its proper divisors (28905633).

86340831 is a wasteful number, since it uses less digits than its factorization.

86340831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31341.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 86340831 is about 9291.9767003582. The cubic root of 86340831 is about 441.9828399117.

The spelling of 86340831 in words is "eighty-six million, three hundred forty thousand, eight hundred thirty-one".