543961816 has 32 divisors (see below), whose sum is σ = 1056906000. Its totient is φ = 262152576.

The previous prime is 543961777. The next prime is 543961819. The reversal of 543961816 is 618169345.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543961819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162835 + ... + 166141.

Almost surely, 2^543961816 is an apocalyptic number.

It is an amenable number.

543961816 is a deficient number, since it is larger than the sum of its proper divisors (512944184).

543961816 is a wasteful number, since it uses less digits than its factorization.

543961816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051 (or 4047 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 543961816 is about 23322.9890022698. The cubic root of 543961816 is about 816.3119201917.

The spelling of 543961816 in words is "five hundred forty-three million, nine hundred sixty-one thousand, eight hundred sixteen".