4149685 has 8 divisors (see below), whose sum is σ = 5048280. Its totient is φ = 3273984.

The previous prime is 4149679. The next prime is 4149703. The reversal of 4149685 is 5869414.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 611524 + 3538161 = 782^2 + 1881^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4149685 - 2⁵ = 4149653 is a prime.

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, 5320 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (631035).

Almost surely, 2^4149685 is an apocalyptic number.

It is an amenable number.

4149685 is a deficient number, since it is larger than the sum of its proper divisors (898595).

4149685 is a wasteful number, since it uses less digits than its factorization.

4149685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11447.

The product of its digits is 34560, while the sum is 37.

The square root of 4149685 is about 2037.0775635699. The cubic root of 4149685 is about 160.6959915214.

The spelling of 4149685 in words is "four million, one hundred forty-nine thousand, six hundred eighty-five".