464889565 has 16 divisors (see below), whose sum is σ = 675067392. Its totient is φ = 300029184.

The previous prime is 464889559. The next prime is 464889569. The reversal of 464889565 is 565988464.

It is not a de Polignac number, because 464889565 - 2⁷ = 464889437 is a prime.

It is a super-2 number, since 2×464889565² = 432244615291778450, 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 (464889569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390069 + ... + 391258.

It is an arithmetic number, because the mean of its divisors is an integer number (42191712).

Almost surely, 2^464889565 is an apocalyptic number.

It is an amenable number.

464889565 is a deficient number, since it is larger than the sum of its proper divisors (210177827).

464889565 is a wasteful number, since it uses less digits than its factorization.

464889565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781356.

The product of its digits is 8294400, while the sum is 55.

The square root of 464889565 is about 21561.2978505469. The cubic root of 464889565 is about 774.6697531541.

The spelling of 464889565 in words is "four hundred sixty-four million, eight hundred eighty-nine thousand, five hundred sixty-five".