86844634 has 8 divisors (see below), whose sum is σ = 132724980. Its totient is φ = 42602976.

The previous prime is 86844629. The next prime is 86844677. The reversal of 86844634 is 43644868.

It can be written as a sum of positive squares in 2 ways, for example, as 82864609 + 3980025 = 9103^2 + 1995^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 409539 + ... + 409750.

Almost surely, 2^86844634 is an apocalyptic number.

86844634 is a deficient number, since it is larger than the sum of its proper divisors (45880346).

86844634 is a wasteful number, since it uses less digits than its factorization.

86844634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819344.

The product of its digits is 442368, while the sum is 43.

The square root of 86844634 is about 9319.0468396720. The cubic root of 86844634 is about 442.8408371282.

It can be divided in two parts, 86844 and 634, that added together give a palindrome (87478).

The spelling of 86844634 in words is "eighty-six million, eight hundred forty-four thousand, six hundred thirty-four".