540730647 has 28 divisors (see below), whose sum is σ = 813900264. Its totient is φ = 359076240.

The previous prime is 540730639. The next prime is 540730661. The reversal of 540730647 is 746037045.

540730647 is a `hidden beast` number, since 5 + 4 + 0 + 7 + 3 + 0 + 647 = 666.

It is not a de Polignac number, because 540730647 - 2³ = 540730639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540730627) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 204997 + ... + 207617.

Almost surely, 2^540730647 is an apocalyptic number.

540730647 is a deficient number, since it is larger than the sum of its proper divisors (273169617).

540730647 is an equidigital number, since it uses as much as digits as its factorization.

540730647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922 (or 2907 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 540730647 is about 23253.6157833572. The cubic root of 540730647 is about 814.6923937317.

The spelling of 540730647 in words is "five hundred forty million, seven hundred thirty thousand, six hundred forty-seven".