4391197 has 4 divisors (see below), whose sum is σ = 4509916. Its totient is φ = 4272480.

The previous prime is 4391161. The next prime is 4391221. The reversal of 4391197 is 7911934.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2277081 + 2114116 = 1509^2 + 1454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4391197 is a prime.

It is a super-2 number, since 2×4391197² = 38565222185618, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4391897) 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, 59304 + ... + 59377.

It is an arithmetic number, because the mean of its divisors is an integer number (1127479).

Almost surely, 2^4391197 is an apocalyptic number.

It is an amenable number.

4391197 is a deficient number, since it is larger than the sum of its proper divisors (118719).

4391197 is a wasteful number, since it uses less digits than its factorization.

4391197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118718.

The product of its digits is 6804, while the sum is 34.

The square root of 4391197 is about 2095.5183129718. The cubic root of 4391197 is about 163.7549010828.

The spelling of 4391197 in words is "four million, three hundred ninety-one thousand, one hundred ninety-seven".