1626841 has 4 divisors (see below), whose sum is σ = 1632384. Its totient is φ = 1621300.

The previous prime is 1626829. The next prime is 1626881. The reversal of 1626841 is 1486261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1626841 - 2⁹ = 1626329 is a prime.

It is a super-2 number, since 2×1626841² = 5293223278562, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

1626841 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1626881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2305 + ... + 2926.

It is an arithmetic number, because the mean of its divisors is an integer number (408096).

2^1626841 is an apocalyptic number.

It is an amenable number.

1626841 is a deficient number, since it is larger than the sum of its proper divisors (5543).

1626841 is an equidigital number, since it uses as much as digits as its factorization.

1626841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5542.

The product of its digits is 2304, while the sum is 28.

The square root of 1626841 is about 1275.4767736027. The cubic root of 1626841 is about 117.6111156522.

The spelling of 1626841 in words is "one million, six hundred twenty-six thousand, eight hundred forty-one".