86166533 has 8 divisors (see below), whose sum is σ = 90998208. Its totient is φ = 81425344.

The previous prime is 86166473. The next prime is 86166547. The reversal of 86166533 is 33566168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86166533 - 2⁸ = 86166277 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 (86166233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20660 + ... + 24477.

It is an arithmetic number, because the mean of its divisors is an integer number (11374776).

Almost surely, 2^86166533 is an apocalyptic number.

86166533 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

86166533 is a deficient number, since it is larger than the sum of its proper divisors (4831675).

86166533 is a wasteful number, since it uses less digits than its factorization.

86166533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45243.

The product of its digits is 77760, while the sum is 38.

The square root of 86166533 is about 9282.5930105763. The cubic root of 86166533 is about 441.6852262918.

The spelling of 86166533 in words is "eighty-six million, one hundred sixty-six thousand, five hundred thirty-three".