1941663 has 8 divisors (see below), whose sum is σ = 2599168. Its totient is φ = 1289304.

The previous prime is 1941659. The next prime is 1941671. The reversal of 1941663 is 3661491.

1941663 is nontrivially palindromic in base 8.

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

It is not a de Polignac number, because 1941663 - 2² = 1941659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1941663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941673) 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, 295 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (324896).

2^1941663 is an apocalyptic number.

1941663 is a deficient number, since it is larger than the sum of its proper divisors (657505).

1941663 is a wasteful number, since it uses less digits than its factorization.

1941663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573.

The product of its digits is 3888, while the sum is 30.

The square root of 1941663 is about 1393.4356820464. The cubic root of 1941663 is about 124.7549974370.

The spelling of 1941663 in words is "one million, nine hundred forty-one thousand, six hundred sixty-three".