536491 has 2 divisors, whose sum is σ = 536492. Its totient is φ = 536490.

The previous prime is 536479. The next prime is 536509. The reversal of 536491 is 194635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 536491 - 2¹³ = 528299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (536441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268245 + 268246.

It is an arithmetic number, because the mean of its divisors is an integer number (268246).

2⁵³⁶⁴⁹¹ is an apocalyptic number.

536491 is a deficient number, since it is larger than the sum of its proper divisors (1).

536491 is an equidigital number, since it uses as much as digits as its factorization.

536491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 536491 is about 732.4554593967. The cubic root of 536491 is about 81.2557581718.

The spelling of 536491 in words is "five hundred thirty-six thousand, four hundred ninety-one".