8464391 has 8 divisors (see below), whose sum is σ = 9512160. Its totient is φ = 7473312.

The previous prime is 8464387. The next prime is 8464397. The reversal of 8464391 is 1934648.

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 8464391 - 2² = 8464387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8464397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13856 + ... + 14453.

It is an arithmetic number, because the mean of its divisors is an integer number (1189020).

Almost surely, 2^8464391 is an apocalyptic number.

8464391 is a deficient number, since it is larger than the sum of its proper divisors (1047769).

8464391 is a wasteful number, since it uses less digits than its factorization.

8464391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28345.

The product of its digits is 20736, while the sum is 35.

The square root of 8464391 is about 2909.3626449791. The cubic root of 8464391 is about 203.7973686397.

The spelling of 8464391 in words is "eight million, four hundred sixty-four thousand, three hundred ninety-one".