536621 has 2 divisors, whose sum is σ = 536622. Its totient is φ = 536620.

The previous prime is 536609. The next prime is 536633. The reversal of 536621 is 126635.

It is a balanced prime because it is at equal distance from previous prime (536609) and next prime (536633).

It can be written as a sum of positive squares in only one way, i.e., 532900 + 3721 = 730^2 + 61^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-536621 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (536651) 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 as a sum of consecutive naturals, namely, 268310 + 268311.

It is an arithmetic number, because the mean of its divisors is an integer number (268311).

2⁵³⁶⁶²¹ is an apocalyptic number.

It is an amenable number.

536621 is a deficient number, since it is larger than the sum of its proper divisors (1).

536621 is an equidigital number, since it uses as much as digits as its factorization.

536621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 536621 is about 732.5441966189. The cubic root of 536621 is about 81.2623208140.

The spelling of 536621 in words is "five hundred thirty-six thousand, six hundred twenty-one".