8685457 has 4 divisors (see below), whose sum is σ = 9475056. Its totient is φ = 7895860.

The previous prime is 8685409. The next prime is 8685463. The reversal of 8685457 is 7545868.

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-8685457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8685407) 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, 394783 + ... + 394804.

It is an arithmetic number, because the mean of its divisors is an integer number (2368764).

Almost surely, 2^8685457 is an apocalyptic number.

It is an amenable number.

8685457 is a deficient number, since it is larger than the sum of its proper divisors (789599).

8685457 is a wasteful number, since it uses less digits than its factorization.

8685457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789598.

The product of its digits is 268800, while the sum is 43.

The square root of 8685457 is about 2947.1099402635. The cubic root of 8685457 is about 205.5563471874.

The spelling of 8685457 in words is "eight million, six hundred eighty-five thousand, four hundred fifty-seven".