469434989 has 2 divisors, whose sum is σ = 469434990. Its totient is φ = 469434988.

The previous prime is 469434967. The next prime is 469434997. The reversal of 469434989 is 989434964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469068964 + 366025 = 21658^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 469434989 - 2⁸ = 469434733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (469434949) 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, 234717494 + 234717495.

It is an arithmetic number, because the mean of its divisors is an integer number (234717495).

Almost surely, 2^469434989 is an apocalyptic number.

It is an amenable number.

469434989 is a deficient number, since it is larger than the sum of its proper divisors (1).

469434989 is an equidigital number, since it uses as much as digits as its factorization.

469434989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6718464, while the sum is 56.

The square root of 469434989 is about 21666.4484630038. The cubic root of 469434989 is about 777.1863281182.

The spelling of 469434989 in words is "four hundred sixty-nine million, four hundred thirty-four thousand, nine hundred eighty-nine".