86890 has 8 divisors (see below), whose sum is σ = 156420. Its totient is φ = 34752.

The previous prime is 86869. The next prime is 86923. The reversal of 86890 is 9868.

It can be written as a sum of positive squares in 2 ways, for example, as 84681 + 2209 = 291^2 + 47^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4335 + ... + 4354.

2⁸⁶⁸⁹⁰ is an apocalyptic number.

86890 is a deficient number, since it is larger than the sum of its proper divisors (69530).

86890 is a wasteful number, since it uses less digits than its factorization.

86890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8696.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 86890 is about 294.7710976334. The cubic root of 86890 is about 44.2917934274.

The spelling of 86890 in words is "eighty-six thousand, eight hundred ninety".