401197 has 4 divisors (see below), whose sum is σ = 407836. Its totient is φ = 394560.

The previous prime is 401179. The next prime is 401201. The reversal of 401197 is 791104.

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 217156 + 184041 = 466^2 + 429^2 .

It is a cyclic number.

It is not a de Polignac number, because 401197 - 2⁷ = 401069 is a prime.

It is a Duffinian number.

401197 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3228 + ... + 3349.

It is an arithmetic number, because the mean of its divisors is an integer number (101959).

2⁴⁰¹¹⁹⁷ is an apocalyptic number.

It is an amenable number.

401197 is a deficient number, since it is larger than the sum of its proper divisors (6639).

401197 is an equidigital number, since it uses as much as digits as its factorization.

401197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6638.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 401197 is about 633.4011367214. The cubic root of 401197 is about 73.7540532102.

The spelling of 401197 in words is "four hundred one thousand, one hundred ninety-seven".