473435509 has 2 divisors, whose sum is σ = 473435510. Its totient is φ = 473435508.

The previous prime is 473435507. The next prime is 473435537. The reversal of 473435509 is 905534374.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251127409 + 222308100 = 15847^2 + 14910^2 .

It is a cyclic number.

It is not a de Polignac number, because 473435509 - 2¹ = 473435507 is a prime.

Together with 473435507, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (473435507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236717754 + 236717755.

It is an arithmetic number, because the mean of its divisors is an integer number (236717755).

Almost surely, 2^473435509 is an apocalyptic number.

It is an amenable number.

473435509 is a deficient number, since it is larger than the sum of its proper divisors (1).

473435509 is an equidigital number, since it uses as much as digits as its factorization.

473435509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 473435509 is about 21758.5732298788. The cubic root of 473435509 is about 779.3878107903.

The spelling of 473435509 in words is "four hundred seventy-three million, four hundred thirty-five thousand, five hundred nine".