86844280 has 16 divisors (see below), whose sum is σ = 195399720. Its totient is φ = 34737696.

The previous prime is 86844271. The next prime is 86844293. The reversal of 86844280 is 8244868.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 2171107 = 86844280 / (8 + 6 + 8 + 4 + 4 + 2 + 8 + 0).

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 3 ways as a sum of consecutive naturals, for example, 1085514 + ... + 1085593.

Almost surely, 2^86844280 is an apocalyptic number.

It is an amenable number.

86844280 is an abundant number, since it is smaller than the sum of its proper divisors (108555440).

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

86844280 is a wasteful number, since it uses less digits than its factorization.

86844280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171118 (or 2171114 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 86844280 is about 9319.0278462938. The cubic root of 86844280 is about 442.8402354181.

The spelling of 86844280 in words is "eighty-six million, eight hundred forty-four thousand, two hundred eighty".