86275309 has 4 divisors (see below), whose sum is σ = 86603616. Its totient is φ = 85947004.

The previous prime is 86275283. The next prime is 86275313. The reversal of 86275309 is 90357268.

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 86275309 - 2¹³ = 86267117 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 (86275909) 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, 163759 + ... + 164284.

It is an arithmetic number, because the mean of its divisors is an integer number (21650904).

Almost surely, 2^86275309 is an apocalyptic number.

It is an amenable number.

86275309 is a deficient number, since it is larger than the sum of its proper divisors (328307).

86275309 is a wasteful number, since it uses less digits than its factorization.

86275309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328306.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 86275309 is about 9288.4503013151. The cubic root of 86275309 is about 441.8710082018.

The spelling of 86275309 in words is "eighty-six million, two hundred seventy-five thousand, three hundred nine".