8641379 has 4 divisors (see below), whose sum is σ = 8745576. Its totient is φ = 8537184.

The previous prime is 8641361. The next prime is 8641421. The reversal of 8641379 is 9731468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8641379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8641309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51974 + ... + 52139.

It is an arithmetic number, because the mean of its divisors is an integer number (2186394).

Almost surely, 2^8641379 is an apocalyptic number.

8641379 is a deficient number, since it is larger than the sum of its proper divisors (104197).

8641379 is a wasteful number, since it uses less digits than its factorization.

8641379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104196.

The product of its digits is 36288, while the sum is 38.

The square root of 8641379 is about 2939.6222546443. The cubic root of 8641379 is about 205.2080299502.

The spelling of 8641379 in words is "eight million, six hundred forty-one thousand, three hundred seventy-nine".