509369463 has 24 divisors (see below), whose sum is σ = 764649600. Its totient is φ = 326393280.

The previous prime is 509369449. The next prime is 509369473. The reversal of 509369463 is 364963905.

It is a happy number.

It is not a de Polignac number, because 509369463 - 2¹³ = 509361271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509369473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35445 + ... + 47697.

It is an arithmetic number, because the mean of its divisors is an integer number (31860400).

Almost surely, 2^509369463 is an apocalyptic number.

509369463 is a deficient number, since it is larger than the sum of its proper divisors (255280137).

509369463 is a wasteful number, since it uses less digits than its factorization.

509369463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12439 (or 12436 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 45.

The square root of 509369463 is about 22569.2149398246. The cubic root of 509369463 is about 798.6275755561.

The spelling of 509369463 in words is "five hundred nine million, three hundred sixty-nine thousand, four hundred sixty-three".