60821 has 2 divisors, whose sum is σ = 60822. Its totient is φ = 60820.

The previous prime is 60811. The next prime is 60859. The reversal of 60821 is 12806.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52900 + 7921 = 230^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 60821 - 2⁶ = 60757 is a prime.

It is a Chen prime.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 60821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30410 + 30411.

It is an arithmetic number, because the mean of its divisors is an integer number (30411).

2⁶⁰⁸²¹ is an apocalyptic number.

It is an amenable number.

60821 is a deficient number, since it is larger than the sum of its proper divisors (1).

60821 is an equidigital number, since it uses as much as digits as its factorization.

60821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 60821 is about 246.6191395654. The cubic root of 60821 is about 39.3264295713.

The spelling of 60821 in words is "sixty thousand, eight hundred twenty-one".