509704477 has 2 divisors, whose sum is σ = 509704478. Its totient is φ = 509704476.

The previous prime is 509704453. The next prime is 509704501. The reversal of 509704477 is 774407905.

It is a balanced prime because it is at equal distance from previous prime (509704453) and next prime (509704501).

It can be written as a sum of positive squares in only one way, i.e., 259242201 + 250462276 = 16101^2 + 15826^2 .

It is a cyclic number.

It is not a de Polignac number, because 509704477 - 2²³ = 501315869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (509704417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254852238 + 254852239.

It is an arithmetic number, because the mean of its divisors is an integer number (254852239).

Almost surely, 2^509704477 is an apocalyptic number.

It is an amenable number.

509704477 is a deficient number, since it is larger than the sum of its proper divisors (1).

509704477 is an equidigital number, since it uses as much as digits as its factorization.

509704477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 509704477 is about 22576.6356439572. The cubic root of 509704477 is about 798.8026238613.

The spelling of 509704477 in words is "five hundred nine million, seven hundred four thousand, four hundred seventy-seven".