540366817 has 2 divisors, whose sum is σ = 540366818. Its totient is φ = 540366816.

The previous prime is 540366803. The next prime is 540366823. The reversal of 540366817 is 718663045.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501939216 + 38427601 = 22404^2 + 6199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540366817 is a prime.

It is a super-2 number, since 2×540366817² = 583992593829422978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 540366817.

It is not a weakly prime, because it can be changed into another prime (540366857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270183408 + 270183409.

It is an arithmetic number, because the mean of its divisors is an integer number (270183409).

Almost surely, 2^540366817 is an apocalyptic number.

It is an amenable number.

540366817 is a deficient number, since it is larger than the sum of its proper divisors (1).

540366817 is an equidigital number, since it uses as much as digits as its factorization.

540366817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 540366817 is about 23245.7913825277. The cubic root of 540366817 is about 814.5096311186.

The spelling of 540366817 in words is "five hundred forty million, three hundred sixty-six thousand, eight hundred seventeen".