469541909 has 2 divisors, whose sum is σ = 469541910. Its totient is φ = 469541908.

The previous prime is 469541879. The next prime is 469541923. The reversal of 469541909 is 909145964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 441420100 + 28121809 = 21010^2 + 5303^2 .

It is a cyclic number.

It is not a de Polignac number, because 469541909 - 2¹² = 469537813 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 (469541939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234770954 + 234770955.

It is an arithmetic number, because the mean of its divisors is an integer number (234770955).

Almost surely, 2^469541909 is an apocalyptic number.

It is an amenable number.

469541909 is a deficient number, since it is larger than the sum of its proper divisors (1).

469541909 is an equidigital number, since it uses as much as digits as its factorization.

469541909 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 47.

The square root of 469541909 is about 21668.9157319881. The cubic root of 469541909 is about 777.2453284457.

The spelling of 469541909 in words is "four hundred sixty-nine million, five hundred forty-one thousand, nine hundred nine".