8945857 has 4 divisors (see below), whose sum is σ = 8962096. Its totient is φ = 8929620.

The previous prime is 8945851. The next prime is 8945869. The reversal of 8945857 is 7585498.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8945857 is a prime.

It is a Duffinian number.

8945857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8945851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7263 + ... + 8404.

It is an arithmetic number, because the mean of its divisors is an integer number (2240524).

Almost surely, 2^8945857 is an apocalyptic number.

It is an amenable number.

8945857 is a deficient number, since it is larger than the sum of its proper divisors (16239).

8945857 is a wasteful number, since it uses less digits than its factorization.

8945857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16238.

The product of its digits is 403200, while the sum is 46.

The square root of 8945857 is about 2990.9625540953. The cubic root of 8945857 is about 207.5904246137.

The spelling of 8945857 in words is "eight million, nine hundred forty-five thousand, eight hundred fifty-seven".