3857117 has 12 divisors (see below), whose sum is σ = 4290048. Its totient is φ = 3465000.

The previous prime is 3857107. The next prime is 3857137. The reversal of 3857117 is 7117583.

It is not a de Polignac number, because 3857117 - 2⁶ = 3857053 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 (3857107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15242 + ... + 15492.

It is an arithmetic number, because the mean of its divisors is an integer number (357504).

Almost surely, 2^3857117 is an apocalyptic number.

It is an amenable number.

3857117 is a deficient number, since it is larger than the sum of its proper divisors (432931).

3857117 is a wasteful number, since it uses less digits than its factorization.

3857117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 389 counting only the distinct ones).

The product of its digits is 5880, while the sum is 32.

The square root of 3857117 is about 1963.9544292065. The cubic root of 3857117 is about 156.8270371302.

The spelling of 3857117 in words is "three million, eight hundred fifty-seven thousand, one hundred seventeen".