470981569 has 2 divisors, whose sum is σ = 470981570. Its totient is φ = 470981568.

The previous prime is 470981561. The next prime is 470981587. The reversal of 470981569 is 965189074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463756225 + 7225344 = 21535^2 + 2688^2 .

It is a cyclic number.

It is not a de Polignac number, because 470981569 - 2³ = 470981561 is a prime.

It is a super-2 number, since 2×470981569² = 443647276675403522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (470981561) 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, 235490784 + 235490785.

It is an arithmetic number, because the mean of its divisors is an integer number (235490785).

Almost surely, 2^470981569 is an apocalyptic number.

It is an amenable number.

470981569 is a deficient number, since it is larger than the sum of its proper divisors (1).

470981569 is an equidigital number, since it uses as much as digits as its factorization.

470981569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 470981569 is about 21702.1097822309. The cubic root of 470981569 is about 778.0388872388.

The spelling of 470981569 in words is "four hundred seventy million, nine hundred eighty-one thousand, five hundred sixty-nine".