8391441 has 8 divisors (see below), whose sum is σ = 11205504. Its totient is φ = 5585840.

The previous prime is 8391433. The next prime is 8391443. The reversal of 8391441 is 1441938.

It is a happy number.

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 8391441 - 2³ = 8391433 is a prime.

8391441 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8391399 and 8391408.

It is not an unprimeable number, because it can be changed into a prime (8391443) 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, 760 + ... + 4166.

It is an arithmetic number, because the mean of its divisors is an integer number (1400688).

Almost surely, 2^8391441 is an apocalyptic number.

It is an amenable number.

8391441 is a deficient number, since it is larger than the sum of its proper divisors (2814063).

8391441 is a wasteful number, since it uses less digits than its factorization.

8391441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231.

The product of its digits is 3456, while the sum is 30.

The square root of 8391441 is about 2896.7984051363. The cubic root of 8391441 is about 203.2102055474.

The spelling of 8391441 in words is "eight million, three hundred ninety-one thousand, four hundred forty-one".