86020705 has 4 divisors (see below), whose sum is σ = 103224852. Its totient is φ = 68816560.

The previous prime is 86020687. The next prime is 86020709. The reversal of 86020705 is 50702068.

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 25321024 + 60699681 = 5032^2 + 7791^2 .

It is not a de Polignac number, because 86020705 - 2⁷ = 86020577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86020709) 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, 8602066 + ... + 8602075.

It is an arithmetic number, because the mean of its divisors is an integer number (25806213).

Almost surely, 2^86020705 is an apocalyptic number.

It is an amenable number.

86020705 is a deficient number, since it is larger than the sum of its proper divisors (17204147).

86020705 is a wasteful number, since it uses less digits than its factorization.

86020705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17204146.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 86020705 is about 9274.7347670971. The cubic root of 86020705 is about 441.4359166471.

The spelling of 86020705 in words is "eighty-six million, twenty thousand, seven hundred five".