86210393 has 4 divisors (see below), whose sum is σ = 86546100. Its totient is φ = 85874688.

The previous prime is 86210351. The next prime is 86210431. The reversal of 86210393 is 39301268.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61340224 + 24870169 = 7832^2 + 4987^2 .

It is a cyclic number.

It is not a de Polignac number, because 86210393 - 2¹² = 86206297 is a prime.

It is a super-2 number, since 2×86210393² = 14864463722428898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86210323) 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, 167468 + ... + 167981.

It is an arithmetic number, because the mean of its divisors is an integer number (21636525).

Almost surely, 2^86210393 is an apocalyptic number.

It is an amenable number.

86210393 is a deficient number, since it is larger than the sum of its proper divisors (335707).

86210393 is a wasteful number, since it uses less digits than its factorization.

86210393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335706.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 86210393 is about 9284.9551964455. The cubic root of 86210393 is about 441.7601549497.

The spelling of 86210393 in words is "eighty-six million, two hundred ten thousand, three hundred ninety-three".