1993841 has 8 divisors (see below), whose sum is σ = 2121600. Its totient is φ = 1868400.

The previous prime is 1993829. The next prime is 1993861. The reversal of 1993841 is 1483991.

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 1993841 - 2¹⁰ = 1992817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1993861) 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, 1400 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (265200).

2^1993841 is an apocalyptic number.

It is an amenable number.

1993841 is a deficient number, since it is larger than the sum of its proper divisors (127759).

1993841 is a wasteful number, since it uses less digits than its factorization.

1993841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159.

The product of its digits is 7776, while the sum is 35.

The square root of 1993841 is about 1412.0343480242. The cubic root of 1993841 is about 125.8626411080.

The spelling of 1993841 in words is "one million, nine hundred ninety-three thousand, eight hundred forty-one".