86710573 has 4 divisors (see below), whose sum is σ = 89054140. Its totient is φ = 84367008.

The previous prime is 86710571. The next prime is 86710577. The reversal of 86710573 is 37501768.

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 67683529 + 19027044 = 8227^2 + 4362^2 .

It is a cyclic number.

It is not a de Polignac number, because 86710573 - 2¹ = 86710571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 2343529 = 86710573 / (8 + 6 + 7 + 1 + 0 + 5 + 7 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86710571) 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 3 ways as a sum of consecutive naturals, for example, 1171728 + ... + 1171801.

It is an arithmetic number, because the mean of its divisors is an integer number (22263535).

Almost surely, 2^86710573 is an apocalyptic number.

It is an amenable number.

86710573 is a deficient number, since it is larger than the sum of its proper divisors (2343567).

86710573 is a wasteful number, since it uses less digits than its factorization.

86710573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343566.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 86710573 is about 9311.8512122993. The cubic root of 86710573 is about 442.6128504454.

The spelling of 86710573 in words is "eighty-six million, seven hundred ten thousand, five hundred seventy-three".