470328581 has 4 divisors (see below), whose sum is σ = 471934092. Its totient is φ = 468723072.

The previous prime is 470328563. The next prime is 470328623. The reversal of 470328581 is 185823074.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 330876100 + 139452481 = 18190^2 + 11809^2 .

It is a cyclic number.

It is not a de Polignac number, because 470328581 - 2¹⁸ = 470066437 is a prime.

It is a super-2 number, since 2×470328581² = 442417948210947122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470328181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802316 + ... + 802901.

It is an arithmetic number, because the mean of its divisors is an integer number (117983523).

Almost surely, 2^470328581 is an apocalyptic number.

It is an amenable number.

470328581 is a deficient number, since it is larger than the sum of its proper divisors (1605511).

470328581 is a wasteful number, since it uses less digits than its factorization.

470328581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605510.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 470328581 is about 21687.0602203249. The cubic root of 470328581 is about 777.6791526865.

The spelling of 470328581 in words is "four hundred seventy million, three hundred twenty-eight thousand, five hundred eighty-one".