1941998 has 4 divisors (see below), whose sum is σ = 2913000. Its totient is φ = 970998.

The previous prime is 1941983. The next prime is 1942001. The reversal of 1941998 is 8991491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8991491 = 607 ⋅14813.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485498 + ... + 485501.

It is an arithmetic number, because the mean of its divisors is an integer number (728250).

2^1941998 is an apocalyptic number.

1941998 is a deficient number, since it is larger than the sum of its proper divisors (971002).

1941998 is an equidigital number, since it uses as much as digits as its factorization.

1941998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971001.

The product of its digits is 23328, while the sum is 41.

The square root of 1941998 is about 1393.5558833430. Note that the first 3 decimals coincide. The cubic root of 1941998 is about 124.7621717889.

The spelling of 1941998 in words is "one million, nine hundred forty-one thousand, nine hundred ninety-eight".