86705944 has 16 divisors (see below), whose sum is σ = 175079520. Its totient is φ = 40018080.

The previous prime is 86705923. The next prime is 86705951. The reversal of 86705944 is 44950768.

It is a super-2 number, since 2×86705944² = 15035841449862272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86705944.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416752 + ... + 416959.

It is an arithmetic number, because the mean of its divisors is an integer number (10942470).

Almost surely, 2^86705944 is an apocalyptic number.

It is an amenable number.

86705944 is an abundant number, since it is smaller than the sum of its proper divisors (88373576).

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

86705944 is a wasteful number, since it uses less digits than its factorization.

86705944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833730 (or 833726 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 86705944 is about 9311.6026547528. The cubic root of 86705944 is about 442.6049740843.

The spelling of 86705944 in words is "eighty-six million, seven hundred five thousand, nine hundred forty-four".