86546709 has 12 divisors (see below), whose sum is σ = 125099052. Its totient is φ = 57657600.

The previous prime is 86546689. The next prime is 86546717. The reversal of 86546709 is 90764568.

It can be written as a sum of positive squares in 2 ways, for example, as 32524209 + 54022500 = 5703^2 + 7350^2 .

It is not a de Polignac number, because 86546709 - 2¹² = 86542613 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86546809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16419 + ... + 21039.

It is an arithmetic number, because the mean of its divisors is an integer number (10424921).

Almost surely, 2^86546709 is an apocalyptic number.

It is an amenable number.

86546709 is a deficient number, since it is larger than the sum of its proper divisors (38552343).

86546709 is a wasteful number, since it uses less digits than its factorization.

86546709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6708 (or 6705 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 86546709 is about 9303.0483713673. The cubic root of 86546709 is about 442.3338608320. Note that the first 3 decimals are identical.

It can be divided in two parts, 865 and 46709, that added together give a palindrome (47574).

The spelling of 86546709 in words is "eighty-six million, five hundred forty-six thousand, seven hundred nine".