8191073 has 8 divisors (see below), whose sum is σ = 8964480. Its totient is φ = 7422480.

The previous prime is 8191069. The next prime is 8191091. The reversal of 8191073 is 3701918.

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 8191073 - 2² = 8191069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8161073) 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, 3023 + ... + 5051.

It is an arithmetic number, because the mean of its divisors is an integer number (1120560).

Almost surely, 2^8191073 is an apocalyptic number.

It is an amenable number.

8191073 is a deficient number, since it is larger than the sum of its proper divisors (773407).

8191073 is a wasteful number, since it uses less digits than its factorization.

8191073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 8191073 is about 2862.0050663827. The cubic root of 8191073 is about 201.5797638759.

Subtracting from 8191073 its sum of digits (29), we obtain a square (8191044 = 2862²).

The spelling of 8191073 in words is "eight million, one hundred ninety-one thousand, seventy-three".