86538329 has 4 divisors (see below), whose sum is σ = 89329920. Its totient is φ = 83746740.

The previous prime is 86538323. The next prime is 86538337. The reversal of 86538329 is 92383568.

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 a de Polignac number, because none of the positive numbers 2^k-86538329 is a prime.

It is a super-2 number, since 2×86538329² = 14977764772224482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86538329.

It is not an unprimeable number, because it can be changed into a prime (86538323) 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, 1395749 + ... + 1395810.

It is an arithmetic number, because the mean of its divisors is an integer number (22332480).

Almost surely, 2^86538329 is an apocalyptic number.

It is an amenable number.

86538329 is a deficient number, since it is larger than the sum of its proper divisors (2791591).

86538329 is a wasteful number, since it uses less digits than its factorization.

86538329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791590.

The product of its digits is 311040, while the sum is 44.

The square root of 86538329 is about 9302.5979704597. The cubic root of 86538329 is about 442.3195838501.

The spelling of 86538329 in words is "eighty-six million, five hundred thirty-eight thousand, three hundred twenty-nine".