8117081 has 4 divisors (see below), whose sum is σ = 9276672. Its totient is φ = 6957492.

The previous prime is 8117077. The next prime is 8117093. The reversal of 8117081 is 1807118.

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 8117081 - 2² = 8117077 is a prime.

It is a super-2 number, since 2×8117081² = 131774007921122, 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 8117081.

It is not an unprimeable number, because it can be changed into a prime (8117881) 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, 579785 + ... + 579798.

It is an arithmetic number, because the mean of its divisors is an integer number (2319168).

Almost surely, 2^8117081 is an apocalyptic number.

It is an amenable number.

8117081 is a deficient number, since it is larger than the sum of its proper divisors (1159591).

8117081 is a wasteful number, since it uses less digits than its factorization.

8117081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159590.

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 8117081 is about 2849.0491396254. The cubic root of 8117081 is about 200.9709536173.

The spelling of 8117081 in words is "eight million, one hundred seventeen thousand, eighty-one".