86028909 has 4 divisors (see below), whose sum is σ = 114705216. Its totient is φ = 57352604.

The previous prime is 86028889. The next prime is 86028931. The reversal of 86028909 is 90982068.

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 86028909 - 2¹³ = 86020717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86028949) 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, 14338149 + ... + 14338154.

It is an arithmetic number, because the mean of its divisors is an integer number (28676304).

Almost surely, 2^86028909 is an apocalyptic number.

It is an amenable number.

86028909 is a deficient number, since it is larger than the sum of its proper divisors (28676307).

86028909 is a wasteful number, since it uses less digits than its factorization.

86028909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28676306.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 86028909 is about 9275.1770333509. The cubic root of 86028909 is about 441.4499498000.

The spelling of 86028909 in words is "eighty-six million, twenty-eight thousand, nine hundred nine".