86847605 has 16 divisors (see below), whose sum is σ = 116106480. Its totient is φ = 61920768.

The previous prime is 86847599. The next prime is 86847637. The reversal of 86847605 is 50674868.

It can be written as a sum of positive squares in 8 ways, for example, as 1062961 + 85784644 = 1031^2 + 9262^2 .

It is not a de Polignac number, because 86847605 - 2²⁰ = 85799029 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 21152 + ... + 24921.

It is an arithmetic number, because the mean of its divisors is an integer number (7256655).

Almost surely, 2^86847605 is an apocalyptic number.

It is an amenable number.

86847605 is a deficient number, since it is larger than the sum of its proper divisors (29258875).

86847605 is a wasteful number, since it uses less digits than its factorization.

86847605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46120.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 86847605 is about 9319.2062430231. The cubic root of 86847605 is about 442.8458870089.

The spelling of 86847605 in words is "eighty-six million, eight hundred forty-seven thousand, six hundred five".