86890205 has 8 divisors (see below), whose sum is σ = 108801792. Its totient is φ = 66489808.

The previous prime is 86890189. The next prime is 86890231. The reversal of 86890205 is 50209868.

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

It is a cyclic number.

It is not a de Polignac number, because 86890205 - 2⁴ = 86890189 is a prime.

It is a super-4 number, since 4×86890205⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377669 + ... + 377898.

It is an arithmetic number, because the mean of its divisors is an integer number (13600224).

Almost surely, 2^86890205 is an apocalyptic number.

It is an amenable number.

86890205 is a deficient number, since it is larger than the sum of its proper divisors (21911587).

86890205 is a wasteful number, since it uses less digits than its factorization.

86890205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755595.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 86890205 is about 9321.4915651949. The cubic root of 86890205 is about 442.9182825999.

The spelling of 86890205 in words is "eighty-six million, eight hundred ninety thousand, two hundred five".