86439234 has 96 divisors (see below), whose sum is σ = 210978432. Its totient is φ = 23520000.

The previous prime is 86439233. The next prime is 86439239. The reversal of 86439234 is 43293468.

It is a junction number, because it is equal to n+sod(n) for n = 86439192 and 86439201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86439233) 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 47 ways as a sum of consecutive naturals, for example, 855784 + ... + 855884.

It is an arithmetic number, because the mean of its divisors is an integer number (2197692).

Almost surely, 2^86439234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86439234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105489216).

86439234 is an abundant number, since it is smaller than the sum of its proper divisors (124539198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86439234 is a wasteful number, since it uses less digits than its factorization.

86439234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 225 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 86439234 is about 9297.2702445395. The cubic root of 86439234 is about 442.1506860494.

The spelling of 86439234 in words is "eighty-six million, four hundred thirty-nine thousand, two hundred thirty-four".