1948489 has 4 divisors (see below), whose sum is σ = 2063124. Its totient is φ = 1833856.

The previous prime is 1948483. The next prime is 1948493. The reversal of 1948489 is 9848491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1138489 + 810000 = 1067^2 + 900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1948489 - 2⁹ = 1947977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1948483) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 57292 + ... + 57325.

It is an arithmetic number, because the mean of its divisors is an integer number (515781).

2^1948489 is an apocalyptic number.

It is an amenable number.

1948489 is a deficient number, since it is larger than the sum of its proper divisors (114635).

1948489 is a wasteful number, since it uses less digits than its factorization.

1948489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114634.

The product of its digits is 82944, while the sum is 43.

The square root of 1948489 is about 1395.8828747427. The cubic root of 1948489 is about 124.9010203115.

The spelling of 1948489 in words is "one million, nine hundred forty-eight thousand, four hundred eighty-nine".