8401685 has 16 divisors (see below), whose sum is σ = 10340352. Its totient is φ = 6552000.

The previous prime is 8401681. The next prime is 8401699. The reversal of 8401685 is 5861048.

It is not a de Polignac number, because 8401685 - 2² = 8401681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8401681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64070 + ... + 64200.

It is an arithmetic number, because the mean of its divisors is an integer number (646272).

Almost surely, 2^8401685 is an apocalyptic number.

It is an amenable number.

8401685 is a deficient number, since it is larger than the sum of its proper divisors (1938667).

8401685 is a wasteful number, since it uses less digits than its factorization.

8401685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 8401685 is about 2898.5660247785. The cubic root of 8401685 is about 203.2928627388.

The spelling of 8401685 in words is "eight million, four hundred one thousand, six hundred eighty-five".