8612081 has 4 divisors (see below), whose sum is σ = 9118692. Its totient is φ = 8105472.

The previous prime is 8612059. The next prime is 8612089. The reversal of 8612081 is 1802168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7612081 + 1000000 = 2759^2 + 1000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8612081 is a prime.

It is a super-2 number, since 2×8612081² = 148335878301122, 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 8612081.

It is not an unprimeable number, because it can be changed into a prime (8612089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253280 + ... + 253313.

It is an arithmetic number, because the mean of its divisors is an integer number (2279673).

Almost surely, 2^8612081 is an apocalyptic number.

It is an amenable number.

8612081 is a deficient number, since it is larger than the sum of its proper divisors (506611).

8612081 is a wasteful number, since it uses less digits than its factorization.

8612081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506610.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 8612081 is about 2934.6347302518. The cubic root of 8612081 is about 204.9758527973.

It can be divided in two parts, 86 and 12081, that added together give a cube (12167 = 23³).

The spelling of 8612081 in words is "eight million, six hundred twelve thousand, eighty-one".