8857939 has 4 divisors (see below), whose sum is σ = 8864200. Its totient is φ = 8851680.

The previous prime is 8857913. The next prime is 8857973. The reversal of 8857939 is 9397588.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8857939 - 2⁵ = 8857907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8857892 and 8857901.

It is not an unprimeable number, because it can be changed into a prime (8857999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112 + ... + 4210.

It is an arithmetic number, because the mean of its divisors is an integer number (2216050).

Almost surely, 2^8857939 is an apocalyptic number.

8857939 is a deficient number, since it is larger than the sum of its proper divisors (6261).

8857939 is a wasteful number, since it uses less digits than its factorization.

8857939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260.

The product of its digits is 544320, while the sum is 49.

The square root of 8857939 is about 2976.2289898460. The cubic root of 8857939 is about 206.9081328993.

The spelling of 8857939 in words is "eight million, eight hundred fifty-seven thousand, nine hundred thirty-nine".