534736509 has 4 divisors (see below), whose sum is σ = 712982016. Its totient is φ = 356491004.

The previous prime is 534736507. The next prime is 534736523. The reversal of 534736509 is 905637435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 534736509 - 2¹ = 534736507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534736507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89122749 + ... + 89122754.

It is an arithmetic number, because the mean of its divisors is an integer number (178245504).

Almost surely, 2^534736509 is an apocalyptic number.

It is an amenable number.

534736509 is a deficient number, since it is larger than the sum of its proper divisors (178245507).

534736509 is a wasteful number, since it uses less digits than its factorization.

534736509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178245506.

The product of its (nonzero) digits is 340200, while the sum is 42.

The square root of 534736509 is about 23124.3704562957. The cubic root of 534736509 is about 811.6708430951.

The spelling of 534736509 in words is "five hundred thirty-four million, seven hundred thirty-six thousand, five hundred nine".