543978660 has 48 divisors (see below), whose sum is σ = 1527716736. Its totient is φ = 144625152.

The previous prime is 543978649. The next prime is 543978671. The reversal of 543978660 is 66879345.

It is an interprime number because it is at equal distance from previous prime (543978649) and next prime (543978671).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6769 + ... + 33671.

It is an arithmetic number, because the mean of its divisors is an integer number (31827432).

Almost surely, 2^543978660 is an apocalyptic number.

It is an amenable number.

543978660 is an abundant number, since it is smaller than the sum of its proper divisors (983738076).

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

543978660 is a wasteful number, since it uses less digits than its factorization.

543978660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27252 (or 27250 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 543978660 is about 23323.3501024188. The cubic root of 543978660 is about 816.3203459155.

The spelling of 543978660 in words is "five hundred forty-three million, nine hundred seventy-eight thousand, six hundred sixty".