86205321 has 12 divisors (see below), whose sum is σ = 125284848. Its totient is φ = 57116664.

The previous prime is 86205277. The next prime is 86205341. The reversal of 86205321 is 12350268.

86205321 is a `hidden beast` number, since 8 + 620 + 5 + 32 + 1 = 666.

It is not a de Polignac number, because 86205321 - 2⁷ = 86205193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86205341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27915 + ... + 30848.

It is an arithmetic number, because the mean of its divisors is an integer number (10440404).

Almost surely, 2^86205321 is an apocalyptic number.

It is an amenable number.

86205321 is a deficient number, since it is larger than the sum of its proper divisors (39079527).

86205321 is a wasteful number, since it uses less digits than its factorization.

86205321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58932 (or 58929 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 86205321 is about 9284.6820624080. The cubic root of 86205321 is about 441.7514914488.

Adding to 86205321 its reverse (12350268), we get a palindrome (98555589).

The spelling of 86205321 in words is "eighty-six million, two hundred five thousand, three hundred twenty-one".