2673221 has 8 divisors (see below), whose sum is σ = 2830464. Its totient is φ = 2519440.

The previous prime is 2673217. The next prime is 2673227. The reversal of 2673221 is 1223762.

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

It is a cyclic number.

It is not a de Polignac number, because 2673221 - 2² = 2673217 is a prime.

It is a super-2 number, since 2×2673221² = 14292221029682, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2673227) 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, 815 + ... + 2451.

It is an arithmetic number, because the mean of its divisors is an integer number (353808).

2^2673221 is an apocalyptic number.

It is an amenable number.

2673221 is a deficient number, since it is larger than the sum of its proper divisors (157243).

2673221 is a wasteful number, since it uses less digits than its factorization.

2673221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731.

The product of its digits is 1008, while the sum is 23.

The square root of 2673221 is about 1634.9987767580. The cubic root of 2673221 is about 138.7857749376.

Adding to 2673221 its reverse (1223762), we get a palindrome (3896983).

The spelling of 2673221 in words is "two million, six hundred seventy-three thousand, two hundred twenty-one".