469616509 has 2 divisors, whose sum is σ = 469616510. Its totient is φ = 469616508.

The previous prime is 469616453. The next prime is 469616533. The reversal of 469616509 is 905616964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 452625625 + 16990884 = 21275^2 + 4122^2 .

It is a cyclic number.

It is not a de Polignac number, because 469616509 - 2⁹ = 469615997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (469616549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234808254 + 234808255.

It is an arithmetic number, because the mean of its divisors is an integer number (234808255).

Almost surely, 2^469616509 is an apocalyptic number.

It is an amenable number.

469616509 is a deficient number, since it is larger than the sum of its proper divisors (1).

469616509 is an equidigital number, since it uses as much as digits as its factorization.

469616509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 469616509 is about 21670.6370234010. The cubic root of 469616509 is about 777.2864887269.

The spelling of 469616509 in words is "four hundred sixty-nine million, six hundred sixteen thousand, five hundred nine".