1983459 has 16 divisors (see below), whose sum is σ = 2757888. Its totient is φ = 1266912.

The previous prime is 1983439. The next prime is 1983463. The reversal of 1983459 is 9543891.

It is not a de Polignac number, because 1983459 - 2⁵ = 1983427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1983409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11794 + ... + 11960.

It is an arithmetic number, because the mean of its divisors is an integer number (172368).

2^1983459 is an apocalyptic number.

1983459 is a deficient number, since it is larger than the sum of its proper divisors (774429).

1983459 is a wasteful number, since it uses less digits than its factorization.

1983459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314.

The product of its digits is 38880, while the sum is 39.

The square root of 1983459 is about 1408.3532937442. The cubic root of 1983459 is about 125.6438037742.

It can be divided in two parts, 198345 and 9, that multiplied together give a triangular number (1785105 = T₁₈₈₉).

The spelling of 1983459 in words is "one million, nine hundred eighty-three thousand, four hundred fifty-nine".