86475280 has 20 divisors (see below), whose sum is σ = 201055212. Its totient is φ = 34590080.

The previous prime is 86475271. The next prime is 86475281. The reversal of 86475280 is 8257468.

It can be written as a sum of positive squares in 2 ways, for example, as 41370624 + 45104656 = 6432^2 + 6716^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (86475281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540391 + ... + 540550.

Almost surely, 2^86475280 is an apocalyptic number.

86475280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86475280 is an abundant number, since it is smaller than the sum of its proper divisors (114579932).

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

86475280 is a wasteful number, since it uses less digits than its factorization.

86475280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080954 (or 1080948 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 86475280 is about 9299.2085684751. The cubic root of 86475280 is about 442.2121378848.

The spelling of 86475280 in words is "eighty-six million, four hundred seventy-five thousand, two hundred eighty".