473776409 has 2 divisors, whose sum is σ = 473776410. Its totient is φ = 473776408.

The previous prime is 473776399. The next prime is 473776411. The reversal of 473776409 is 904677374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325910809 + 147865600 = 18053^2 + 12160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-473776409 is a prime.

Together with 473776411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (473776469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236888204 + 236888205.

It is an arithmetic number, because the mean of its divisors is an integer number (236888205).

Almost surely, 2^473776409 is an apocalyptic number.

It is an amenable number.

473776409 is a deficient number, since it is larger than the sum of its proper divisors (1).

473776409 is an equidigital number, since it uses as much as digits as its factorization.

473776409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 47.

The square root of 473776409 is about 21766.4055140025. The cubic root of 473776409 is about 779.5748334884.

The spelling of 473776409 in words is "four hundred seventy-three million, seven hundred seventy-six thousand, four hundred nine".