8081791 has 8 divisors (see below), whose sum is σ = 8293824. Its totient is φ = 7871520.

The previous prime is 8081789. The next prime is 8081803. The reversal of 8081791 is 1971808.

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 8081791 - 2¹ = 8081789 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081771) 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, 17301 + ... + 17761.

It is an arithmetic number, because the mean of its divisors is an integer number (1036728).

Almost surely, 2^8081791 is an apocalyptic number.

8081791 is a deficient number, since it is larger than the sum of its proper divisors (212033).

8081791 is a wasteful number, since it uses less digits than its factorization.

8081791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 8081791 is about 2842.8490990554. The cubic root of 8081791 is about 200.6792819350.

It can be divided in two parts, 80817 and 91, that added together give a palindrome (80908).

The spelling of 8081791 in words is "eight million, eighty-one thousand, seven hundred ninety-one".