86434902 has 48 divisors (see below), whose sum is σ = 202934160. Its totient is φ = 26482176.

The previous prime is 86434889. The next prime is 86434939. The reversal of 86434902 is 20943468.

It is a happy number.

86434902 is a `hidden beast` number, since 8 + 643 + 4 + 9 + 0 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9874 + ... + 16442.

It is an arithmetic number, because the mean of its divisors is an integer number (4227795).

Almost surely, 2^86434902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86434902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101467080).

86434902 is an abundant number, since it is smaller than the sum of its proper divisors (116499258).

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

86434902 is a wasteful number, since it uses less digits than its factorization.

86434902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6637 (or 6634 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 86434902 is about 9297.0372700124. The cubic root of 86434902 is about 442.1432996320.

The spelling of 86434902 in words is "eighty-six million, four hundred thirty-four thousand, nine hundred two".