465643685 has 16 divisors (see below), whose sum is σ = 637153776. Its totient is φ = 323632128.

The previous prime is 465643681. The next prime is 465643687. The reversal of 465643685 is 586346564.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 29084449 + 436559236 = 5393^2 + 20894^2 .

It is not a de Polignac number, because 465643685 - 2² = 465643681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465643681) 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 in 15 ways as a sum of consecutive naturals, for example, 209594 + ... + 211803.

It is an arithmetic number, because the mean of its divisors is an integer number (39822111).

Almost surely, 2^465643685 is an apocalyptic number.

It is an amenable number.

465643685 is a deficient number, since it is larger than the sum of its proper divisors (171510091).

465643685 is a wasteful number, since it uses less digits than its factorization.

465643685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421432.

The product of its digits is 2073600, while the sum is 47.

The square root of 465643685 is about 21578.7785798919. The cubic root of 465643685 is about 775.0884033737.

The spelling of 465643685 in words is "four hundred sixty-five million, six hundred forty-three thousand, six hundred eighty-five".