1984304485 has 4 divisors (see below), whose sum is σ = 2381165388. Its totient is φ = 1587443584.

The previous prime is 1984304473. The next prime is 1984304527. The reversal of 1984304485 is 5844034891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5844034891 = 109 ⋅53614999.

It can be written as a sum of positive squares in 2 ways, for example, as 738426276 + 1245878209 = 27174^2 + 35297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1984304485 is a prime.

It is a super-2 number, since 2×1984304485² = 7874928578382230450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198430444 + ... + 198430453.

It is an arithmetic number, because the mean of its divisors is an integer number (595291347).

Almost surely, 2^1984304485 is an apocalyptic number.

It is an amenable number.

1984304485 is a deficient number, since it is larger than the sum of its proper divisors (396860903).

1984304485 is an equidigital number, since it uses as much as digits as its factorization.

1984304485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396860902.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 1984304485 is about 44545.5327165362. The cubic root of 1984304485 is about 1256.6165388034.

The spelling of 1984304485 in words is "one billion, nine hundred eighty-four million, three hundred four thousand, four hundred eighty-five".