8379855 has 84 divisors (see below), whose sum is σ = 17444280. Its totient is φ = 3849120.

The previous prime is 8379853. The next prime is 8379859. The reversal of 8379855 is 5589738.

It is not a de Polignac number, because 8379855 - 2¹ = 8379853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

Its product of digits (302400) is a multiple of the sum of its prime factors (64).

8379855 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8379855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8379851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 441036 + ... + 441054.

It is an arithmetic number, because the mean of its divisors is an integer number (207670).

Almost surely, 2^8379855 is an apocalyptic number.

8379855 is an abundant number, since it is smaller than the sum of its proper divisors (9064425).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8379855 is a wasteful number, since it uses less digits than its factorization.

8379855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 38 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 8379855 is about 2894.7979204083. The cubic root of 8379855 is about 203.1166388669.

The spelling of 8379855 in words is "eight million, three hundred seventy-nine thousand, eight hundred fifty-five".