1661848 has 16 divisors (see below), whose sum is σ = 3216960. Its totient is φ = 804000.

The previous prime is 1661839. The next prime is 1661851. The reversal of 1661848 is 8481661.

It is a congruent number.

It is an unprimeable number.

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, 3103 + ... + 3598.

It is an arithmetic number, because the mean of its divisors is an integer number (201060).

2^1661848 is an apocalyptic number.

It is an amenable number.

1661848 is a deficient number, since it is larger than the sum of its proper divisors (1555112).

1661848 is a wasteful number, since it uses less digits than its factorization.

1661848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738 (or 6734 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 1661848 is about 1289.1268362733. The cubic root of 1661848 is about 118.4487366318.

The spelling of 1661848 in words is "one million, six hundred sixty-one thousand, eight hundred forty-eight".