470605309 has 2 divisors, whose sum is σ = 470605310. Its totient is φ = 470605308.

The previous prime is 470605307. The next prime is 470605351. The reversal of 470605309 is 903506074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465610084 + 4995225 = 21578^2 + 2235^2 .

It is a cyclic number.

It is not a de Polignac number, because 470605309 - 2¹ = 470605307 is a prime.

Together with 470605307, 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 (470605307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235302654 + 235302655.

It is an arithmetic number, because the mean of its divisors is an integer number (235302655).

Almost surely, 2^470605309 is an apocalyptic number.

It is an amenable number.

470605309 is a deficient number, since it is larger than the sum of its proper divisors (1).

470605309 is an equidigital number, since it uses as much as digits as its factorization.

470605309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 470605309 is about 21693.4393077723. The cubic root of 470605309 is about 777.8316442368.

The spelling of 470605309 in words is "four hundred seventy million, six hundred five thousand, three hundred nine".