1941621 has 16 divisors (see below), whose sum is σ = 2991168. Its totient is φ = 1107200.

The previous prime is 1941607. The next prime is 1941659. The reversal of 1941621 is 1261491.

It is a cyclic number.

It is not a de Polignac number, because 1941621 - 2⁶ = 1941557 is a prime.

1941621 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1941591 and 1941600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941601) 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 15 ways as a sum of consecutive naturals, for example, 1170 + ... + 2291.

It is an arithmetic number, because the mean of its divisors is an integer number (186948).

2^1941621 is an apocalyptic number.

1941621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1941621 is a deficient number, since it is larger than the sum of its proper divisors (1049547).

1941621 is a wasteful number, since it uses less digits than its factorization.

1941621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492.

The product of its digits is 432, while the sum is 24.

The square root of 1941621 is about 1393.4206113016. The cubic root of 1941621 is about 124.7540979078.

The spelling of 1941621 in words is "one million, nine hundred forty-one thousand, six hundred twenty-one".