86362821 has 16 divisors (see below), whose sum is σ = 128411520. Its totient is φ = 57365280.

The previous prime is 86362819. The next prime is 86362853. The reversal of 86362821 is 12826368.

86362821 is a `hidden beast` number, since 8 + 6 + 3 + 628 + 21 = 666.

It is not a de Polignac number, because 86362821 - 2¹ = 86362819 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86362891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1896 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (8025720).

Almost surely, 2^86362821 is an apocalyptic number.

It is an amenable number.

86362821 is a deficient number, since it is larger than the sum of its proper divisors (42048699).

86362821 is a wasteful number, since it uses less digits than its factorization.

86362821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11673 (or 11667 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 86362821 is about 9293.1599039293. The cubic root of 86362821 is about 442.0203593469.

The spelling of 86362821 in words is "eighty-six million, three hundred sixty-two thousand, eight hundred twenty-one".