1797213 has 12 divisors (see below), whose sum is σ = 2634464. Its totient is φ = 1089000.

The previous prime is 1797209. The next prime is 1797227. The reversal of 1797213 is 3127971.

It is not a de Polignac number, because 1797213 - 2² = 1797209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2113 + ... + 2838.

2^1797213 is an apocalyptic number.

It is an amenable number.

1797213 is a deficient number, since it is larger than the sum of its proper divisors (837251).

1797213 is a wasteful number, since it uses less digits than its factorization.

1797213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4976 (or 4965 counting only the distinct ones).

The product of its digits is 2646, while the sum is 30.

The square root of 1797213 is about 1340.6017305673. The cubic root of 1797213 is about 121.5812256406.

The spelling of 1797213 in words is "one million, seven hundred ninety-seven thousand, two hundred thirteen".