1984534 has 4 divisors (see below), whose sum is σ = 2976804. Its totient is φ = 992266.

The previous prime is 1984511. The next prime is 1984537. The reversal of 1984534 is 4354891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4354891 = 179 ⋅24329.

It is a self number, because there is not a number n which added to its sum of digits gives 1984534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496132 + ... + 496135.

It is an arithmetic number, because the mean of its divisors is an integer number (744201).

2^1984534 is an apocalyptic number.

1984534 is a deficient number, since it is larger than the sum of its proper divisors (992270).

1984534 is an equidigital number, since it uses as much as digits as its factorization.

1984534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992269.

The product of its digits is 17280, while the sum is 34.

The square root of 1984534 is about 1408.7348934416. The cubic root of 1984534 is about 125.6664985875. Note that the first 3 decimals are identical.

The spelling of 1984534 in words is "one million, nine hundred eighty-four thousand, five hundred thirty-four".