3870117 has 6 divisors (see below), whose sum is σ = 5590182. Its totient is φ = 2580072.

The previous prime is 3870077. The next prime is 3870149. The reversal of 3870117 is 7110783.

It can be written as a sum of positive squares in only one way, i.e., 2556801 + 1313316 = 1599^2 + 1146^2 .

It is not a de Polignac number, because 3870117 - 2⁷ = 3869989 is a prime.

It is an Ulam number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214998 + ... + 215015.

It is an arithmetic number, because the mean of its divisors is an integer number (931697).

Almost surely, 2^3870117 is an apocalyptic number.

It is an amenable number.

3870117 is a deficient number, since it is larger than the sum of its proper divisors (1720065).

3870117 is a wasteful number, since it uses less digits than its factorization.

3870117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430019 (or 430016 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 3870117 is about 1967.2612942871. The cubic root of 3870117 is about 157.0030291381.

The spelling of 3870117 in words is "three million, eight hundred seventy thousand, one hundred seventeen".