469442789 has 2 divisors, whose sum is σ = 469442790. Its totient is φ = 469442788.

The previous prime is 469442773. The next prime is 469442801. The reversal of 469442789 is 987244964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428904100 + 40538689 = 20710^2 + 6367^2 .

It is a cyclic number.

It is not a de Polignac number, because 469442789 - 2⁴ = 469442773 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 469442789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (469442759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234721394 + 234721395.

It is an arithmetic number, because the mean of its divisors is an integer number (234721395).

Almost surely, 2^469442789 is an apocalyptic number.

It is an amenable number.

469442789 is a deficient number, since it is larger than the sum of its proper divisors (1).

469442789 is an equidigital number, since it uses as much as digits as its factorization.

469442789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 53.

The square root of 469442789 is about 21666.6284640689. The cubic root of 469442789 is about 777.1906325977.

The spelling of 469442789 in words is "four hundred sixty-nine million, four hundred forty-two thousand, seven hundred eighty-nine".