3980197 has 4 divisors (see below), whose sum is σ = 4286380. Its totient is φ = 3674016.

The previous prime is 3980191. The next prime is 3980203. The reversal of 3980197 is 7910893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7910893 = 109 ⋅72577.

It is an interprime number because it is at equal distance from previous prime (3980191) and next prime (3980203).

It can be written as a sum of positive squares in 2 ways, for example, as 1052676 + 2927521 = 1026^2 + 1711^2 .

It is a cyclic number.

It is not a de Polignac number, because 3980197 - 2⁷ = 3980069 is a prime.

It is a Duffinian number.

3980197 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3980191) 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, 153072 + ... + 153097.

It is an arithmetic number, because the mean of its divisors is an integer number (1071595).

Almost surely, 2^3980197 is an apocalyptic number.

It is an amenable number.

3980197 is a deficient number, since it is larger than the sum of its proper divisors (306183).

3980197 is a wasteful number, since it uses less digits than its factorization.

3980197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306182.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 3980197 is about 1995.0431073037. The cubic root of 3980197 is about 158.4777108444.

The spelling of 3980197 in words is "three million, nine hundred eighty thousand, one hundred ninety-seven".