1671213 has 8 divisors (see below), whose sum is σ = 2251648. Its totient is φ = 1102464.

The previous prime is 1671211. The next prime is 1671223. The reversal of 1671213 is 3121761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1671213 - 2¹ = 1671211 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 1671213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2581 + ... + 3162.

It is an arithmetic number, because the mean of its divisors is an integer number (281456).

2^1671213 is an apocalyptic number.

It is an amenable number.

1671213 is a deficient number, since it is larger than the sum of its proper divisors (580435).

1671213 is an equidigital number, since it uses as much as digits as its factorization.

1671213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843.

The product of its digits is 252, while the sum is 21.

The square root of 1671213 is about 1292.7540369305. The cubic root of 1671213 is about 118.6708177580.

Adding to 1671213 its reverse (3121761), we get a palindrome (4792974).

The spelling of 1671213 in words is "one million, six hundred seventy-one thousand, two hundred thirteen".