3421197 has 42 divisors (see below), whose sum is σ = 5830062. Its totient is φ = 1994544.

The previous prime is 3421193. The next prime is 3421219. The reversal of 3421197 is 7911243.

It can be written as a sum of positive squares in only one way, i.e., 2368521 + 1052676 = 1539^2 + 1026^2 .

It is not a de Polignac number, because 3421197 - 2² = 3421193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

3421197 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3421197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421193) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 180054 + ... + 180072.

It is an arithmetic number, because the mean of its divisors is an integer number (138811).

Almost surely, 2^3421197 is an apocalyptic number.

It is an amenable number.

3421197 is a deficient number, since it is larger than the sum of its proper divisors (2408865).

3421197 is an equidigital number, since it uses as much as digits as its factorization.

3421197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 35 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 3421197 is about 1849.6478043130. The cubic root of 3421197 is about 150.6813008427.

The spelling of 3421197 in words is "three million, four hundred twenty-one thousand, one hundred ninety-seven".