469486021 has 2 divisors, whose sum is σ = 469486022. Its totient is φ = 469486020.

The previous prime is 469485977. The next prime is 469486057. The reversal of 469486021 is 120684964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409252900 + 60233121 = 20230^2 + 7761^2 .

It is a cyclic number.

It is not a de Polignac number, because 469486021 - 2⁹ = 469485509 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (469486321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234743010 + 234743011.

It is an arithmetic number, because the mean of its divisors is an integer number (234743011).

Almost surely, 2^469486021 is an apocalyptic number.

It is an amenable number.

469486021 is a deficient number, since it is larger than the sum of its proper divisors (1).

469486021 is an equidigital number, since it uses as much as digits as its factorization.

469486021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 469486021 is about 21667.6261043982. The cubic root of 469486021 is about 777.2144895865.

The spelling of 469486021 in words is "four hundred sixty-nine million, four hundred eighty-six thousand, twenty-one".