540999647 has 2 divisors, whose sum is σ = 540999648. Its totient is φ = 540999646.

The previous prime is 540999637. The next prime is 540999659. The reversal of 540999647 is 746999045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540999647 - 2¹⁶ = 540934111 is a prime.

It is a super-3 number, since 3×540999647³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540999617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270499823 + 270499824.

It is an arithmetic number, because the mean of its divisors is an integer number (270499824).

Almost surely, 2^540999647 is an apocalyptic number.

540999647 is a deficient number, since it is larger than the sum of its proper divisors (1).

540999647 is an equidigital number, since it uses as much as digits as its factorization.

540999647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The square root of 540999647 is about 23259.3991108971. The cubic root of 540999647 is about 814.8274677124.

The spelling of 540999647 in words is "five hundred forty million, nine hundred ninety-nine thousand, six hundred forty-seven".