509713427 has 4 divisors (see below), whose sum is σ = 509918136. Its totient is φ = 509508720.

The previous prime is 509713411. The next prime is 509713433. The reversal of 509713427 is 724317905.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 509713427 - 2⁴ = 509713411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (509713447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98573 + ... + 103614.

It is an arithmetic number, because the mean of its divisors is an integer number (127479534).

Almost surely, 2^509713427 is an apocalyptic number.

509713427 is a deficient number, since it is larger than the sum of its proper divisors (204709).

509713427 is a wasteful number, since it uses less digits than its factorization.

509713427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204708.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 509713427 is about 22576.8338568542. The cubic root of 509713427 is about 798.8072992774.

The spelling of 509713427 in words is "five hundred nine million, seven hundred thirteen thousand, four hundred twenty-seven".