536785409 has 4 divisors (see below), whose sum is σ = 537572016. Its totient is φ = 535998804.

The previous prime is 536785393. The next prime is 536785411. The reversal of 536785409 is 904587635.

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 536785409 - 2⁴ = 536785393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (536745409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392279 + ... + 393644.

It is an arithmetic number, because the mean of its divisors is an integer number (134393004).

Almost surely, 2^536785409 is an apocalyptic number.

It is an amenable number.

536785409 is a deficient number, since it is larger than the sum of its proper divisors (786607).

536785409 is an equidigital number, since it uses as much as digits as its factorization.

536785409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786606.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 536785409 is about 23168.6298472741. The cubic root of 536785409 is about 812.7061896901.

The spelling of 536785409 in words is "five hundred thirty-six million, seven hundred eighty-five thousand, four hundred nine".