1684899055 has 24 divisors (see below), whose sum is σ = 2354875200. Its totient is φ = 1153938240.

The previous prime is 1684899031. The next prime is 1684899077. The reversal of 1684899055 is 5509984861.

It is not a de Polignac number, because 1684899055 - 2²¹ = 1682801903 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1684898987 and 1684899005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219421 + ... + 226969.

It is an arithmetic number, because the mean of its divisors is an integer number (98119800).

Almost surely, 2^1684899055 is an apocalyptic number.

1684899055 is a deficient number, since it is larger than the sum of its proper divisors (669976145).

1684899055 is an equidigital number, since it uses as much as digits as its factorization.

1684899055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8479 (or 8472 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 55.

The square root of 1684899055 is about 41047.5219105855. The cubic root of 1684899055 is about 1189.9388088489.

The spelling of 1684899055 in words is "one billion, six hundred eighty-four million, eight hundred ninety-nine thousand, fifty-five".