86025805 has 4 divisors (see below), whose sum is σ = 103230972. Its totient is φ = 68820640.

The previous prime is 86025791. The next prime is 86025809. The reversal of 86025805 is 50852068.

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 37625956 + 48399849 = 6134^2 + 6957^2 .

It is not a de Polignac number, because 86025805 - 2²¹ = 83928653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86025809) 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 3 ways as a sum of consecutive naturals, for example, 8602576 + ... + 8602585.

It is an arithmetic number, because the mean of its divisors is an integer number (25807743).

Almost surely, 2^86025805 is an apocalyptic number.

It is an amenable number.

86025805 is a deficient number, since it is larger than the sum of its proper divisors (17205167).

86025805 is a wasteful number, since it uses less digits than its factorization.

86025805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17205166.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 86025805 is about 9275.0097034990. The cubic root of 86025805 is about 441.4446404331. Note that the first 3 decimals are identical.

The spelling of 86025805 in words is "eighty-six million, twenty-five thousand, eight hundred five".