60806021 has 2 divisors, whose sum is σ = 60806022. Its totient is φ = 60806020.

The previous prime is 60806003. The next prime is 60806027. The reversal of 60806021 is 12060806.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43375396 + 17430625 = 6586^2 + 4175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60806021 is a prime.

It is a super-4 number, since 4×60806021⁴ (a number of 32 digits) contains 4444 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60806027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30403010 + 30403011.

It is an arithmetic number, because the mean of its divisors is an integer number (30403011).

Almost surely, 2^60806021 is an apocalyptic number.

It is an amenable number.

60806021 is a deficient number, since it is larger than the sum of its proper divisors (1).

60806021 is an equidigital number, since it uses as much as digits as its factorization.

60806021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 60806021 is about 7797.8215547677. The cubic root of 60806021 is about 393.2320086766.

Adding to 60806021 its reverse (12060806), we get a palindrome (72866827).

The spelling of 60806021 in words is "sixty million, eight hundred six thousand, twenty-one".