1822681 has 8 divisors (see below), whose sum is σ = 2173824. Its totient is φ = 1494240.

The previous prime is 1822673. The next prime is 1822693. The reversal of 1822681 is 1862281.

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 1822681 - 2³ = 1822673 is a prime.

It is a super-2 number, since 2×1822681² = 6644332055522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1822661) 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, 5500 + ... + 5821.

It is an arithmetic number, because the mean of its divisors is an integer number (271728).

2^1822681 is an apocalyptic number.

It is an amenable number.

1822681 is a deficient number, since it is larger than the sum of its proper divisors (351143).

1822681 is a wasteful number, since it uses less digits than its factorization.

1822681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11351.

The product of its digits is 1536, while the sum is 28.

The square root of 1822681 is about 1350.0670353727. The cubic root of 1822681 is about 122.1528363132.

The spelling of 1822681 in words is "one million, eight hundred twenty-two thousand, six hundred eighty-one".