543940667 has 2 divisors, whose sum is σ = 543940668. Its totient is φ = 543940666.

The previous prime is 543940633. The next prime is 543940693. The reversal of 543940667 is 766049345.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 543940667 - 2¹⁶ = 543875131 is a prime.

It is not a weakly prime, because it can be changed into another prime (543940627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271970333 + 271970334.

It is an arithmetic number, because the mean of its divisors is an integer number (271970334).

Almost surely, 2^543940667 is an apocalyptic number.

543940667 is a deficient number, since it is larger than the sum of its proper divisors (1).

543940667 is an equidigital number, since it uses as much as digits as its factorization.

543940667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 543940667 is about 23322.5356040033. The cubic root of 543940667 is about 816.3013407698.

The spelling of 543940667 in words is "five hundred forty-three million, nine hundred forty thousand, six hundred sixty-seven".