86290 has 8 divisors (see below), whose sum is σ = 155340. Its totient is φ = 34512.

The previous prime is 86287. The next prime is 86291. The reversal of 86290 is 9268.

It can be written as a sum of positive squares in 2 ways, for example, as 85849 + 441 = 293^2 + 21^2 .

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

It is not an unprimeable number, because it can be changed into a prime (86291) 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, 4305 + ... + 4324.

2⁸⁶²⁹⁰ is an apocalyptic number.

86290 is a deficient number, since it is larger than the sum of its proper divisors (69050).

86290 is a wasteful number, since it uses less digits than its factorization.

86290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8636.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 86290 is about 293.7515957403. The cubic root of 86290 is about 44.1896087446.

The spelling of 86290 in words is "eighty-six thousand, two hundred ninety".