545705984 has 78 divisors (see below), whose sum is σ = 1161762294. Its totient is φ = 256245760.

The previous prime is 545705983. The next prime is 545705999. The reversal of 545705984 is 489507545.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 172134400 + 373571584 = 13120^2 + 19328^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545705983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1183514 + ... + 1183974.

Almost surely, 2^545705984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545705984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580881147).

545705984 is an abundant number, since it is smaller than the sum of its proper divisors (616056310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545705984 is an equidigital number, since it uses as much as digits as its factorization.

545705984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 47.

The square root of 545705984 is about 23360.3506822993. The cubic root of 545705984 is about 817.1834679383.

The spelling of 545705984 in words is "five hundred forty-five million, seven hundred five thousand, nine hundred eighty-four".