86290281 has 48 divisors (see below), whose sum is σ = 159239808. Its totient is φ = 43718400.

The previous prime is 86290271. The next prime is 86290289. The reversal of 86290281 is 18209268.

86290281 is a `hidden beast` number, since 8 + 629 + 0 + 28 + 1 = 666.

It is not a de Polignac number, because 86290281 - 2¹⁰ = 86289257 is a prime.

It is a super-2 number, since 2×86290281² = 14892025190117922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86290289) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26895 + ... + 29931.

It is an arithmetic number, because the mean of its divisors is an integer number (3317496).

Almost surely, 2^86290281 is an apocalyptic number.

It is an amenable number.

86290281 is a deficient number, since it is larger than the sum of its proper divisors (72949527).

86290281 is a wasteful number, since it uses less digits than its factorization.

86290281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102 (or 3099 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 86290281 is about 9289.2562134974. The cubic root of 86290281 is about 441.8965671176.

The spelling of 86290281 in words is "eighty-six million, two hundred ninety thousand, two hundred eighty-one".