86195409 has 4 divisors (see below), whose sum is σ = 114927216. Its totient is φ = 57463604.

The previous prime is 86195393. The next prime is 86195411. The reversal of 86195409 is 90459168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86195409 - 2⁴ = 86195393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86195309) 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, 14365899 + ... + 14365904.

It is an arithmetic number, because the mean of its divisors is an integer number (28731804).

Almost surely, 2^86195409 is an apocalyptic number.

It is an amenable number.

86195409 is a deficient number, since it is larger than the sum of its proper divisors (28731807).

86195409 is a wasteful number, since it uses less digits than its factorization.

86195409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28731806.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 86195409 is about 9284.1482646498. The cubic root of 86195409 is about 441.7345597461.

It can be divided in two parts, 8619 and 5409, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 86195409 in words is "eighty-six million, one hundred ninety-five thousand, four hundred nine".