470389709 has 2 divisors, whose sum is σ = 470389710. Its totient is φ = 470389708.

The previous prime is 470389663. The next prime is 470389729. The reversal of 470389709 is 907983074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 468073225 + 2316484 = 21635^2 + 1522^2 .

It is a cyclic number.

It is not a de Polignac number, because 470389709 - 2¹² = 470385613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (470389729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235194854 + 235194855.

It is an arithmetic number, because the mean of its divisors is an integer number (235194855).

Almost surely, 2^470389709 is an apocalyptic number.

It is an amenable number.

470389709 is a deficient number, since it is larger than the sum of its proper divisors (1).

470389709 is an equidigital number, since it uses as much as digits as its factorization.

470389709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 470389709 is about 21688.4694941805. The cubic root of 470389709 is about 777.7128425463.

The spelling of 470389709 in words is "four hundred seventy million, three hundred eighty-nine thousand, seven hundred nine".