3970117 has 4 divisors (see below), whose sum is σ = 3974476. Its totient is φ = 3965760.

The previous prime is 3970111. The next prime is 3970121. The reversal of 3970117 is 7110793.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7110793 = 569 ⋅12497.

It can be written as a sum of positive squares in 2 ways, for example, as 3896676 + 73441 = 1974^2 + 271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3970117 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 (3970111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234 + ... + 2827.

It is an arithmetic number, because the mean of its divisors is an integer number (993619).

Almost surely, 2^3970117 is an apocalyptic number.

It is an amenable number.

3970117 is a deficient number, since it is larger than the sum of its proper divisors (4359).

3970117 is a wasteful number, since it uses less digits than its factorization.

3970117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4358.

The product of its (nonzero) digits is 1323, while the sum is 28.

The square root of 3970117 is about 1992.5152446092. The cubic root of 3970117 is about 158.3438141415.

The spelling of 3970117 in words is "three million, nine hundred seventy thousand, one hundred seventeen".