432687689 has 12 divisors (see below), whose sum is σ = 532939284. Its totient is φ = 349058304.

The previous prime is 432687683. The next prime is 432687713. The reversal of 432687689 is 986786234.

It can be written as a sum of positive squares in 2 ways, for example, as 204919225 + 227768464 = 14315^2 + 15092^2 .

It is not a de Polignac number, because 432687689 - 2⁸ = 432687433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 432687689.

It is not an unprimeable number, because it can be changed into a prime (432687683) 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 11 ways as a sum of consecutive naturals, for example, 258884 + ... + 260549.

It is an arithmetic number, because the mean of its divisors is an integer number (44411607).

Almost surely, 2^432687689 is an apocalyptic number.

432687689 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

432687689 is a deficient number, since it is larger than the sum of its proper divisors (100251595).

432687689 is a wasteful number, since it uses less digits than its factorization.

432687689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519464 (or 519457 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The square root of 432687689 is about 20801.1463386036. The cubic root of 432687689 is about 756.3535440583.

The spelling of 432687689 in words is "four hundred thirty-two million, six hundred eighty-seven thousand, six hundred eighty-nine".