536993 has 4 divisors (see below), whose sum is σ = 555540. Its totient is φ = 518448.

The previous prime is 536989. The next prime is 536999. The reversal of 536993 is 399635.

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

It can be written as a sum of positive squares in 2 ways, for example, as 214369 + 322624 = 463^2 + 568^2 .

It is a cyclic number.

It is not a de Polignac number, because 536993 - 2² = 536989 is a prime.

It is a super-2 number, since 2×536993² = 576722964098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9230 + ... + 9287.

It is an arithmetic number, because the mean of its divisors is an integer number (138885).

2⁵³⁶⁹⁹³ is an apocalyptic number.

It is an amenable number.

536993 is a deficient number, since it is larger than the sum of its proper divisors (18547).

536993 is a wasteful number, since it uses less digits than its factorization.

536993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18546.

The product of its digits is 21870, while the sum is 35.

The square root of 536993 is about 732.7980622245. The cubic root of 536993 is about 81.2810942132.

The spelling of 536993 in words is "five hundred thirty-six thousand, nine hundred ninety-three".