469684681 has 4 divisors (see below), whose sum is σ = 470383252. Its totient is φ = 468986112.

The previous prime is 469684669. The next prime is 469684703. The reversal of 469684681 is 186486964.

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 276224400 + 193460281 = 16620^2 + 13909^2 .

It is a cyclic number.

It is not a de Polignac number, because 469684681 - 2⁹ = 469684169 is a prime.

It is a super-2 number, since 2×469684681² = 441207399132143522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (469684181) 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 3 ways as a sum of consecutive naturals, for example, 348276 + ... + 349621.

It is an arithmetic number, because the mean of its divisors is an integer number (117595813).

Almost surely, 2^469684681 is an apocalyptic number.

It is an amenable number.

469684681 is a deficient number, since it is larger than the sum of its proper divisors (698571).

469684681 is an equidigital number, since it uses as much as digits as its factorization.

469684681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698570.

The product of its digits is 1990656, while the sum is 52.

The square root of 469684681 is about 21672.2098780904. The cubic root of 469684681 is about 777.3240985707.

The spelling of 469684681 in words is "four hundred sixty-nine million, six hundred eighty-four thousand, six hundred eighty-one".