4197901 has 4 divisors (see below), whose sum is σ = 4203900. Its totient is φ = 4191904.

The previous prime is 4197887. The next prime is 4197913. The reversal of 4197901 is 1097914.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1097914 = 2 ⋅548957.

It can be written as a sum of positive squares in 2 ways, for example, as 3515625 + 682276 = 1875^2 + 826^2 .

It is a cyclic number.

It is not a de Polignac number, because 4197901 - 2¹⁹ = 3673613 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 (4197601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786 + ... + 3403.

It is an arithmetic number, because the mean of its divisors is an integer number (1050975).

Almost surely, 2^4197901 is an apocalyptic number.

It is an amenable number.

4197901 is a deficient number, since it is larger than the sum of its proper divisors (5999).

4197901 is an equidigital number, since it uses as much as digits as its factorization.

4197901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 4197901 is about 2048.8779856302. The cubic root of 4197901 is about 161.3159824513.

The spelling of 4197901 in words is "four million, one hundred ninety-seven thousand, nine hundred one".