8457685 has 8 divisors (see below), whose sum is σ = 10397016. Its totient is φ = 6600960.

The previous prime is 8457677. The next prime is 8457727. The reversal of 8457685 is 5867548.

It can be written as a sum of positive squares in 4 ways, for example, as 30276 + 8427409 = 174^2 + 2903^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8457685 - 2³ = 8457677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20424 + ... + 20833.

It is an arithmetic number, because the mean of its divisors is an integer number (1299627).

Almost surely, 2^8457685 is an apocalyptic number.

It is an amenable number.

8457685 is a deficient number, since it is larger than the sum of its proper divisors (1939331).

8457685 is a wasteful number, since it uses less digits than its factorization.

8457685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41303.

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

The square root of 8457685 is about 2908.2099305243. The cubic root of 8457685 is about 203.7435342397.

The spelling of 8457685 in words is "eight million, four hundred fifty-seven thousand, six hundred eighty-five".