547985664 has 108 divisors (see below), whose sum is σ = 1618792812. Its totient is φ = 178176000.

The previous prime is 547985663. The next prime is 547985693. The reversal of 547985664 is 466589745.

547985664 is a `hidden beast` number, since 5 + 4 + 79 + 8 + 566 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 298598400 + 249387264 = 17280^2 + 15792^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 547985664.

It is not an unprimeable number, because it can be changed into a prime (547985663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91564 + ... + 97364.

Almost surely, 2^547985664 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 547985664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809396406).

547985664 is an abundant number, since it is smaller than the sum of its proper divisors (1070807148).

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

547985664 is a wasteful number, since it uses less digits than its factorization.

547985664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5864 (or 5847 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The square root of 547985664 is about 23409.0936176521. The cubic root of 547985664 is about 818.3198116609.

The spelling of 547985664 in words is "five hundred forty-seven million, nine hundred eighty-five thousand, six hundred sixty-four".