84686231 has 8 divisors (see below), whose sum is σ = 102477600. Its totient is φ = 68318208.

The previous prime is 84686227. The next prime is 84686237. The reversal of 84686231 is 13268648.

It is a happy number.

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

It is not a de Polignac number, because 84686231 - 2² = 84686227 is a prime.

It is a super-2 number, since 2×84686231² = 14343515441970722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84686237) 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, 355706 + ... + 355943.

It is an arithmetic number, because the mean of its divisors is an integer number (12809700).

Almost surely, 2^84686231 is an apocalyptic number.

84686231 is a deficient number, since it is larger than the sum of its proper divisors (17791369).

84686231 is a wasteful number, since it uses less digits than its factorization.

84686231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711673.

The product of its digits is 55296, while the sum is 38.

The square root of 84686231 is about 9202.5122113475. The cubic root of 84686231 is about 439.1412849110.

The spelling of 84686231 in words is "eighty-four million, six hundred eighty-six thousand, two hundred thirty-one".