469901609 has 2 divisors, whose sum is σ = 469901610. Its totient is φ = 469901608.

The previous prime is 469901603. The next prime is 469901617. The reversal of 469901609 is 906109964.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405901609 + 64000000 = 20147^2 + 8000^2 .

It is a cyclic number.

It is not a de Polignac number, because 469901609 - 2¹² = 469897513 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 469901609.

It is not a weakly prime, because it can be changed into another prime (469901603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234950804 + 234950805.

It is an arithmetic number, because the mean of its divisors is an integer number (234950805).

Almost surely, 2^469901609 is an apocalyptic number.

It is an amenable number.

469901609 is a deficient number, since it is larger than the sum of its proper divisors (1).

469901609 is an equidigital number, since it uses as much as digits as its factorization.

469901609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 469901609 is about 21677.2140507031. The cubic root of 469901609 is about 777.4437514751.

The spelling of 469901609 in words is "four hundred sixty-nine million, nine hundred one thousand, six hundred nine".