469316021 has 2 divisors, whose sum is σ = 469316022. Its totient is φ = 469316020.

The previous prime is 469315997. The next prime is 469316047. The reversal of 469316021 is 120613964.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 468939025 + 376996 = 21655^2 + 614^2 .

It is a cyclic number.

It is not a de Polignac number, because 469316021 - 2¹⁰ = 469314997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (469316521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234658010 + 234658011.

It is an arithmetic number, because the mean of its divisors is an integer number (234658011).

Almost surely, 2^469316021 is an apocalyptic number.

It is an amenable number.

469316021 is a deficient number, since it is larger than the sum of its proper divisors (1).

469316021 is an equidigital number, since it uses as much as digits as its factorization.

469316021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 469316021 is about 21663.7028460049. The cubic root of 469316021 is about 777.1206689627.

Adding to 469316021 its reverse (120613964), we get a palindrome (589929985).

The spelling of 469316021 in words is "four hundred sixty-nine million, three hundred sixteen thousand, twenty-one".